Health diseases have become a rapidly growing epidemic in...

Health diseases have become a rapidly growing epidemic in today’s society. Most people have begun to live a healthier life and avoid eating foods that are â€Å"bad† for them. Others are still naà ¯ve to the health risks fast food causes. But exactly what caused these diseases to become an epidemic? Weight problems have been on the rise since the early 1900’s. Today, Americans are fatter than medical science says we should be, and weights are still increasing. While many other countries have experienced increases in obesity, no other developed country is quite as big as the United States. In the mid-1900’s, most of the food preparation was done by families who cooked their own meals. Now there is a mass production of food preparations so†¦show more content†¦High fructose corn syrup, HFCS, was first developed in the 1970’s. HFCS mixtures were tested on rats and the livers of the surviving rats looked like the livers of alcoholics, full o f fat and scar tissue. Most of us consume more HFCS than regular sugar and we eat it all the time but do not realize it. So why does the food industry use so much HFCS? It is cheaper to make and ship around than regular sugar and they make a higher profit by not spending as much. Also HFCS helped provide a market for corn growers after the corn-oil margarine declined. Obesity opens the door to a long list of killers, including heart disease, cardiovascular problems, strokes, diabetes and respiratory problems. â€Å"Over the past three decades, childhood obesity rates in America have tripled, and today, nearly one in three children in America are overweight or obese. The numbers are even higher in African American and Hispanic communities, where nearly 40% of the children are overweight or obese† states the Lets Move website. â€Å"Meals were home-cooked with reasonable portion sizes and there was always a vegetable on the plate. Eating fast food was rare and snacking betwee n meals was an occasional treat† (Move). Let’s Move! is an initiative, launched by the First Lady to help solve the challenge of childhood obesity within a generation. Childhood obesity is one of the leading reasons why society was brought to the attention of a healthier lifestyle. Many Americans arent very physicallyShow MoreRelatedChildhood Obesity : A Growing Epidemic Across The World Essay1824 Words   |  8 PagesChildhood obesity is a growing epidemic across the world, and has become a rapidly increasing problem in the US. In the past thirty years, the obesity rate for children aged 12-19 has quadrupled, and it has doubled in children aged 6-11 (US Department of Health and Human Services, 2015). When compared to the lifestyle of an average 13 year old thirty years ago, today’s lifestyle is one that seems to stack the cards against them. 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Role Of Project Management On Restaurant Development

The Role of Project Management in Restaurant Development Opening a restaurant is not a simple process. There are various checklists that needs to be gathered first. Once all the checklists are available, selection process will begin. At that period various options needs to be eliminated and potential options should be kept. Project management plays an important role to ensure the available options are implemented within a budget and estimated timeframe. According to Fabris (2014), space design, vendor selection, managing the construction process and selection of location are just a few time consuming responsibilities a project must tackle. Managers and owners of the restaurant may have strengths in operations management. Also, their skills are very handy when it comes to concept development. However, there are few areas managers lack their core competencies. In order to develop a new restaurant, expertise in facility design and construction has a big role. The first and indispensable step is to establish an optimal restaurant construction schedule. Creation of work breakdown schedule (WBS) is one of the most important phase to establish efficient construction schedule. The budget estimate and number of personnel required to complete certain tasks (number of plumbers, electrician, alarm installers etc.) can be analyzed through WBS. Biffi (2008) suggest that, â€Å"the creation of WBS have helped to better define the scope of a rehabilitation project as well as track theShow MoreRelatedCase Study : Restaurant General Manager801 Words   |  4 PagesCore Role Profile Restaurant General Manager Overview The Restaurant General Manager (GM) is responsible for growing restaurant guest counts, sales profitably and for making sure the restaurant meets McDonald’s critical Guest standards of Quality, Service, and Cleanliness and role models best in class Guest Experience behaviours. The GM works with his/her reporting manager to set the restaurant’s targets with a growth mindset and create a plan to achieve the targets. The GM doesn’t work alone toRead MoreCase Study : The New  ¬ Golden Dragon1265 Words   |  6 PagesManchester, free of charge. Next door is the old Yang Sing Restaurant in mutual business partnership with the hotel. This report will consist of the recommended sections a project plan should possess. 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Even McDonald has built in America but in recently, to describe McDonald’s restaurant, it is one of the biggest fast food restaurants in the world. Today, McDonald has cover more than 100 countries, more than 30,000 restaurants and serves more than 50 million worldwide in one day. McDonald use letter M with goldenRead MoreTamadun Islam1657 Words   |  7 Pagesby sales, with about 32,000 restaurants serving burgers and fries in about 120 countries. (There are nearly 14,000 Golden Arches locations in the US.) The popular chain is well-known for its Big Macs, Quarter Pounders, and Chicken McNuggets. Most of its outlets are free-standing units, but McDonalds also has many units located in airports and retail areas. PRODUCTS McDonalds is proud to offer a wide variety of high-quality, great tasting menu options. 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The presence of triple constraint will impact the project process. The relationship between the project scope, cost, and time will determine what changes will be implemented. These factors also impact the quality of the project and the knowledge of this will aid in the decision making process. The initial planning process of a construction project will be examined. A statement of need, goals and objectives, the stakeholders and project requirements

International Nurses in Canada free essay sample

International Nurses in Canada Nurses play vital role in the person’s life. Nurses take care of health of all age group of Canadians and make the nation very healthy and wealthy. Nursing, as a career to both men and women offer varieties of opportunities for professional development and the personal satisfaction by helping people, when they really seek caring hand. Duties and Responsibilities of a Nurse in Ontario, Canada In Canada duties and responsibilities of nurses are well defined and listed with the emphasis on good ethics. The main duties of the Registered Nurses are as follows.Nurses assess patients to identify appropriate nursing interventions and provide medications and treatments according to policies and protocols . They collaborate with team members to plan, implement and evaluate patient care in consultation with patients and their relatives. They educate the patients and implement the institute policies for discharging patients. They assist surgeons, physicians in medical procedure or surgery and successfully monitor and operate medical equipments and supervise subordinates staff. (1. Employment Ontario). They maintain stock of supplies; prepare rooms, sterile instruments and equipments.They perform routine laboratory and office work. (2. Compassionate nursing care). In Ontario, there are two major groups in nursing profession. 1. Registered Nurse, 2. Registered Practical Nurse. The important differences between these two nursing professions are education and practice. RN requires studying a four year Bachelor of Nursing degree course and RPN requires studying, diploma program of four semesters. (3. RNAO). Working area of a nurse trained in Ontario, Canada A nurse trained in Canada can work in nearly 120 countries in the world. This is due to the Global nursing connections of Canadian Nursing Association with ICN (International Council Of Nursing). ICN is a federation of national nurses’ associations, representing nurses in more than 120 countries. CNA has very good leadership, which has represented ICN at various senior level for pretty long period. (4. CNA). Duties of a nurse in a Third World Country (ZAMBIA) Zambia is a member of International Council of Nurses (ICN) and nursing profession is regulated by the Nurses and Midwives Act No. 31 of 1997. Unfortunately, Zambia is among the 57 countries identified by WHO as experiencing critical shortage nurses and doctors as they are changing their profession or migrating to other counties. (5-ZUNO, 2008). Nurses in Zambia are working in highly unsafe and poor occupational conditions. In Zambia HIV/AIDS and other diseases such as tuberculosis and malaria are predominant. Due to the shortage of nursing staff, there is an overload of work on existing nurses. They work with inadequate protective clothing and instruments. They are offered very poor salary and deprived of basic needs of life. All these factors increase stress to nurses and deteriorate their physical, mental and financial condition. The nurses trained in Ontario can work in any part of the world, but the internationally trained nurse cannot work here as soon as they come here. At first glance this looks unpalatable and dominance of developed country over developing country and third world country. Here, the development in health care is very fast to keep the people healthy and provide faster recovery. So nurses will require keeping the pace with new technology and innovations. Nurses need to implement new health programs.Nurses need to work more independently. Nurses must be able to collaborate, the activities of the different disciplines for the patient’s benefit. Here, Nurses should be aware of consequences of ethical and legal issues, while treating the patient with their consent, relating nursing practice in the institute / hospital. (6. CNA). All these important information and knowledge are required before treating patients in Ontario. Above all, communication should also be fluent, to understand team members and patients. Because of these reasons, internationally trained nurses might not be able to work immediately, when they arrive here. Requirements for internationally trained nurse to be accepted in nursing profession They should be Canadian citizen, Permanent Resident or authorized under the Immigration and Refugee Protection Act (Canada) and provide evidence of fluency in English / French. They should complete an acceptable nursing program, provide recent safe nursing practice, should successfully complete national nursing registration examination and provide registration or eligibility of registration in Ontario. They should provide Good character and clean criminal record from a Canadian Criminal Record. (7. CNO).Expenses to obtain Ontario Certification for internationally trained nurses Various Bridge Training programs are offered by Ontario government to internationally educated nursing professional to gain the knowledge and information needed to get license to do practise in Ontario. (8. Ontario Bridge Training). This study program is ranging between 2 to 4 semesters. The tuition fee for this study program is ranging between $ 12000 to $ 4400. After completion of this program they will have to pay,1. application fee,2. PLAR Fee,3. Examinatin fee,4,General class registration fee. The total comes $ 2457. 0. (9. CNO). These expenses are overwhelming for newcomers. Newcomers initially struggle to get the job to meet their daily expenses. How could they take care of expensive tuition fees and license fees with full time study? This system is very expensive for internationally trained nurse to get license and do the practise in Ontario.

Transgenesis and Selective Breeding free essay sample

The relation between humans and genetic manipulation is older than we think. Humans have been manipulating the transfer of genetic information between organisms for over 10. 000 years. The first experiences were with cultivation of grains and domestication of animals. The facilities that these methods bring in order to keep having the necessary stuff for our survival make the humans improve their techniques. Now, with the advances of science, we have some sophisticated ways to make easier get the most wanted kinds of livestock and plants. Selective breeding and transgenesis are examples of popular (and successful) processes involving genetic manipulation in the current context. Transgenic cows Nowadays, with the many abilities of the science, techniques are improving livestock. One of them is the ability to engineer and altered DNA from organisms. These organisms are termed Genetically Modified Organisms (GMOs) and may be modified one of 3 ways: by alteration of existing gene, by deletion of existing gene or by addition of foreign genetic material. We will write a custom essay sample on Transgenesis and Selective Breeding or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page The last one enables the GMO to express the trait coded by the new gene. These organisms are referred to as transgenic. The aims of transgenesis can be for specific economic traits or for disease models (animals genetically manipulated to exhibit disease symptoms so that effective treatment can be studied). The transgenic cows are an example of transgenic animals. As a transgenic animal, the transgenic cows have the extra gene (transgene) present in every  cell, but it’s only expressed in mammary tissue, making the transgenes protein only found and extracted from the cow’s milk. In New Zealand, the AgResearch have been successfully producing transgenic cows that make modified milk or produce therapeutic proteins to treat human diseases. Process Making a transgenic cow is a multi step process. Scientists who produce transgenic cows use a range of techniques including DNA cloning, restriction enzymes, ligation, polymerase chain reaction (PCR), transformation, nuclear transfer and in vitro embryo production. In New Zealand, AgResearch have been doing diverse researches about transgenic cows. Now, with these, it is possible to simplify the technique to do transgenic cows in 7 steps:   Identification of trait First, the scientists make an analysis in order to solve problems and find the characteristics wanted in the transgenic animal. After decided the kind of livestock required, it is searched where it’s possible to find the transgene and how to align it logically. Step 2: Sourcing the transgene The desired gene sequence is extracted from the source organism’s DNA. The scientists obtain the sequence from a genomic library, that’s a collection of cloned segments of DNA containing at least one copy of every gene from a particular organism. The DNA product contains the organism’s entire DNA sequence, thus it is the desired trait plus the rest of the organism’s DNA. Step 3: Gene Isolation Once the gene has been indentified and located, the scientists need to remove the gene sequence from the rest of the DNA. With restriction enzymes, the DNA is cut leaving a bunch of pieces with varying lengths. One of which is the gene of interest. It will be with sticky ends in order to be easily glued back into a vector. This way, the transgene will have the specifically variant that is needed. Restriction Enzymes come from bacteria and are used as a defence mechanism. When viruses (or other bacteria) attack, bacteria kill them by cutting up in both strands of DNA, at a specific sequence, usually about 4-8 base pairs long. Step 4: Designing and constructing the gene After isolated, the transgene is made modifying parts of the gene. The gene construct is a unit of DNA that includes: A B C D A) A selectable marker gene: Usually an  antibiotic  resistance  gene. This is added in order to select cells that have successfully taken up the gene construct. A promoter sequence: A tissue-specific  promoter  sequence is used to correctly switched the start of expression from the  protein  in cells with appropriate tissue, for example, mammary cells in lactating cows. C) The desired gene D) A terminal sequence: A terminal sequence is needed to signal the cellular machinery that the end of the gene sequence has been reached. It all is connected with a ligation enzyme and mixed. This product is incubated in the water bath at 16 degrees for half an hour. Then, the scientists use the PCR (Polymerase Chain Reaction). Polymerase Chain Reaction is a technique that allows scientists to copy and multiply a piece of DNA millions of times. The DNA is heated to 98? C so that is separates into single strands and polymerase enzyme is added to synthesis new DNA strands from supplied nucleotides. Step 5: Transformation into bovine cells The gene construct is incorporated into the  genome  of a cow cell  using a technique called transformation. Transformation involves the delivery of a transgene into the nucleus of a recipient cell and integration into a chromosome so it can be passed onto offspring. Since cows have billions of cells, it would be impossible to insert a copy of the transgene into every cell, so tissue culture techniques must be used. Tissue culture is the technique of obtaining samples of tissue, growing it outside the body without a scaffold, and reapplying it A bovine cell line is cultured in an incubator. During the transformation, holes are made in the cell  membrane  allowing the DNA to enter. The holes can be made by applying an electrical pulse or by adding chemicals to the cells. Once inside the cell, the gene construct may enter the  nucleus and incorporate into the cell’s genome. That can be done either by using an actual stimulus that interferes with the membrane and allows for a short time for the DNA to enter a cell or just by chemical reactions reagents that again interfere with a membrane that surrounds the cell and then allows temporarily for a DNA molecule to enter. The recipient genome is exposed to the transgenes in hopes that a few of the transgenes will actually be integrated into that recipient genome and then properly expressed. This is a rarely case and that’s why the next step involves selection of cells expressing the transgene. There is also concern that transformation might indirectly after the expression of other genes because of the unpredictable integration of transgene resulting in a toxic phenotype. Transform a bovine cell line is necessary because inject the transgene directly into a cow will only change the somatic cells, and the aim is affect the gametes to pass onto the offspring. Step 6: Selecting for transgene positive cells To know if the gene has successfully incorporated, it is needed to screen the cells. The cells are transferred to a selective growth medium containing an antibiotic or chemical, depending on which selectable marker was used. After the antibiotic or chemical is added, the cells that haven’t taken up the transgene will die. The other will survive because they contain an antibiotic resistance gene, making them resistant. The survivors will divide and form a small colony of identical cells. Then, it’s involved Polymerase Chain Reaction (PCR) to photocopier and runs off a whole lot of copies of the gene in order to visualize that the transgene is actually present. The two strands in the DNA double helix need to be separated in a denaturation, done by raising the temperature of the DNA solution. This causes the hydrogen bonds between the complementary DNA chains to break, and the two strands separate. Next, the temperature is lowered and an enzyme joins free DNA nucleotides together. The order in which these nucleotides are joined to the new strand is determined by the sequence of nucleotides in the original DNA strand which is being copied. The result is a double stranded DNA molecule which contains one newly made strand and one original strand. After, the newly created double helix is separated (by heating the solution) and the cycle is repeated. The cells are also tested by Southern Blotting, which includes DNA digestion, gel electrophoresis technique, blotting, probe labelling, hybridization washing and detection. To perform it, the bovine cell DNA is digested by restriction enzymes and run out on a gel. The DNA is denatured into single strand DNA and transferred to a piece of nylon membrane. Then a radioactive DNA probe is made containing the DNA sequence of the transgene of interest. The paper is rinsed with the probe, and if the probe is identical to any DNA sequence on the paper it will bind to it. Finally, the paper is exposed to X-ray film. A band or mark on the film indicates that the gene of interest is integrated into the bovine cell DNA. Step 7: Making a transgenic embryo using nuclear transfer and cloning Nuclear transfer is used to create a whole animal from a single transgenic bovine cell. The generation of a transgenic calf follows the same process as the generation of a cloned calf. Ovaries are collected from cows processed at the local abattoir. Eggs are removed from the ovaries and matured overnight in a special media. The nuclear material is then removed from the egg using a fine glass needle and a single cultured cell (carrying the transgene) is positioned against the cytoplasm of the egg (injection). The transgenic bovine cell is fused with a bovine oocyte (egg). An electrical pulse is applied to help fuse the cells. The reconstruct (egg + fused cell) is then chemically activated and placed into culture for development to begin. Once fused with the oocyte, the transgenic cell’s chromosomes are reprogrammed to direct development into an embryo. After 7 days, the transgenic embryo will become a blastocysts and will have about 150 cells, so they can be transferred into a  recipient  cow for further development to term. If the embryo develops to full term, after 9 months, the cow will give birth to a calf. To confirm that the calf is transgenic, scientists can check using: 1. Polymerase Chain Reaction (PCR) – PCR can quickly establish whether the transgene is present or absent in the calf’s DNA. 2. Quantitative PCR (q-PCR) – q-PCR is to quantify how many copies of the transgene have been incorporated into the genome of the cell line. The q-PCR machine is a standard PCR but with the incorporation of a fluorescent dye that shows the amplification of the DNA product live on screen as the reaction carries out. 3. Fluorescence in-situ hybridisation (FISH) – FISH is a technique in which include take a biopsy from the animal, grow up cells back into culture, arrest them at metaphase and prepare some slides with those cells. With the slides is possible to probe where the transgene is in the chromosome  and visualize if it has integrated into more than one chromosome. 4. Analysing of protein expressed – When cows are two years old they may have their first calf, this way it is stimulated the lactation and milk production. At this point, the milk can be tested to determine whether transgenic proteins, like casein and myelin basic protein are present. Assuming the transgene has successfully integrated itself into the genome, it will be present in every cell of the animal that develops and will be passed on to following generations through regular sexual reproduction. Implications Interestingly, the creation of transgenic animals has resulted in a good turn of events. Transgenic technology holds great potential in many fields, including agriculture, medicine, and industry. The impact of transgenic animals reaches ecosystems, genetic biodiversity, health and survival of individuals, populations and evolution of populations. Some of the implications of the transgenic process are very important as: Impact over genetic biodiversity, health or survival of individuals and populations Improving livestock and animal health Transgenic technologies could be used to improve animal health by increasing  resistance to diseases. When technology using molecular biology was developed, it became possible to develop traits in animals in a shorter time and with more precision. In addition, scientists can improve the size of livestock genetically. Transgenesis can allow larger herds with specific traits. Improving food quality or making novel food products Improving the quantity or quality of the milk or meat from cows may be of value. For example, milk with extra casein requires less processing to make into cheese and will have increased calcium levels. AgResearch’s first  transgenic  cows had extra bovine kappa casein genes inserted in their  genome. This research proved to the scientists that transgenic technologies could be used to alter milk composition in cows. In the future, modified milk from transgenic cows could be used to benefit animal health, for example, by improving growth and survival of calves, prevent animal diseases, such as mastitis, make milk with human health benefits, assist milk processing into dairy products. Overseas milk or meat products from transgenic animals are not allowed to enter the animal orhuman food supply in New Zealand. Creating therapeutic proteins Transgenic cows can be used as ‘biofactories’ to produce human therapeutic   proteins. Therapeutic proteins are used to treat human diseases and they include hormones, antibodies, vaccines, growth factors and blood clotting factors. In June 2006, the first therapeutic  protein  made in a transgenic animal was approved for use in Europe and the USA. ATryn ®, a human antithrombin protein, is made in transgenic goats. The protein prevents blood clots in patients who don’t make their own version of this protein. Products such as insulin, growth hormone, and blood anti-clotting factors have already been obtained from the milk of transgenic cows too. Research is also underway to manufacture milk through transgenesis for treatment of debilitating diseases such as phenylketonuria (PKU), hereditary emphysema, and cystic fibrosis. The A. I. Virtanen Institute in Finland produced a calf with a gene that makes the substance that promotes the growth of red cells in humans. Scientists at AgResearch have generated transgenic cows that produce myelin basic protein (MBP) in their milk. MBP is part of the insulating layer that surrounds nerves. In patients with multiple sclerosis, this insulating layer is gradually destroyed, which prevents the nerves from communicating. Treatment with human MBP may help reduce symptoms of multiple sclerosis. Impact over ecosystems In New Zealand, to start a research as the transgenic cows by AgResearch, it is needed to follow strict guidelines for care and containment of the animals. Transgenic  cows are classed as new organisms and are regulated by the Hazardous Substances and New Organisms (HSNO) Act. The HSNO Act is overseen by the EPA, the Environmental Protection Agency. The EPA provides rules and regulations for introducing any hazardous substances or new organisms to New Zealand. Before any research can be done, an application must be made to  the Environmental Protection Authority (EPA). EPA evaluates the benefits and risks of any research and decides whether the work can begin. Anyone can make a submission on an application, which can support it, oppose it or support some parts and oppose others. Applications to EPA can be viewed on the EPA website. Environmental impact ERMA may place restrictions or require certain standards to be followed before giving approval for transgenic research work. For example, the transgenic cows at AgResearch are kept in a special containment facility at Ruakura with restricted access and environmental monitoring. Beyond, transgenic animals cannot leave the facility and the farmers must follow strict rules for waste disposal. The animal containment facility is monitored by the Ministry of Agriculture and Forestry (MAF) New Zealand. All waste materials from the transgenic cow facility must be disposed of on site. Milk is treated by  fermentation, then diluted and sprayed over the pasture. After consultation with local Maori, it was agreed that all animal carcases would be buried on site. Impact over society Ethical frameworks Ethics is a crucial part of the nature of biotechnology. Transgenic animals can contain genes that would not normally arise through natural genetic variation. In New Zealand, transgenic technologies are highly regulated, with all genetically modified animals being kept in containment. However, using or adapting an animal raises issues about animal welfare, the environment, human health and wellbeing, and society. This issue may be viewed differently by different stakeholder groups according to their cultural, spiritual or religious beliefs and values. As part of the HSNO Act, scientists need to consult with Maori at a local and national level through meetings or  hui. Together, they consider the risks and benefits an application may pose to Maori  culture  or traditional relationships with ancestral lands, water, sites,  wahi tapu, valued  flora  and  fauna  or other  taonga. The ethics thinking tool must be used before any decision is made: Consequences  Ã¢â‚¬â€œ what are the benefits and risks? Rights and duties  Ã¢â‚¬â€œ what rights need to be protected and who is responsible for this? Autonomy  Ã¢â‚¬â€œ should individuals have the right to choose for themselves, or does one decision count for everyone? Virtue  Ã¢â‚¬â€œ what is the ‘good’ thing to do? Multiple perspectives  Ã¢â‚¬â€œ what perspectives do groups with other cultural, spiritual or religious views have? Ethical concerns must be addressed as the technology grows, including the issue of lab animal welfare. The research must consider all the factors and people involvement to this, never think in the individual but in the society. The future direction of transgenic research will be influenced by ongoing discussion and evaluation of ethical and societal issues that are raised. New Zealanders need to weigh up the risks and benefits associated with transgenic cows and decide what they consider to be acceptable. Selective breeding Selective breeding of animals is a selective mating to increase the possibility of obtaining certain characteristics in the animals in order to get better livestock. The type of mating selected depends on the goals. To produce the kinds of animal they want, breeders have to first understand the animal as a  species, then the animal as genetic individuals. Selective breeding use many techniques as outcrossing, linebreeding, inbreeding and hybrids. The more modern techniques involve a wide variety of laboratory methods, including embryo selection, artificial insemination, cloning and MOET. Traditional techniques: 1. Outcrossing – Mating two animals that are unrelated for at least 4 to 6  generations back is called an outcross. This method works best when the genetic  variation for a trait is high. 2. Linebreeding – Linebreeding involves mating related animals like half-brother/half-sister, cousins,  aunt/nephew,  and other more distant relationships. 3. Inbreeding – This breeding method involved mating directly related animals, like mother/son, father/daughter, and full brother/full sister (full siblings). This method is used generally to create uniformity and prepotency (the ability of this process to continue) and to force out latent weaknesses from the gene pool. First generation cross between two animals that belong to different breeds. Hybrid is process that occurs in nature, particularly in plants. However, humans have learned how to manipulate the genes in a similar way using the same principles. With increased rate of mutations, offspring are selected that contain the genetic variation that suites the desired need. Hybrids contain a unique number of chromosomes when compared to distant relatives of similar genomes. The hybrids then carry traits of both species. 5. Composite – Two hybrids of same breed-combination bred back to each other for generations. Modern techniques: 1. Embryo Selection – Embryo Selection is used to select the best embryos according the livestock wanted. Embryo Selection is crucial in horticulture and agriculture. Sex Selection: Sometimes, one gender tends to be preferred for a specific purpose. Sex selection is vital for the production of offspring. a. Females are useful in commercial purposes eg) ju, dairy cows b. Males that are able to breed with many females to pass on desired traits; expensive if the cows are inseminated. 2. Embryo Manipulation – Embryo Manipulation takes place not long after fertilisation and beginning of the zygote process of mitosis (morula stage). The new cells formed are called blastomeres and they are totipotent from the 4 to 8 cell stage. In this time, scientist can manipulate the embryo in order to get some desired characteristics. 3. Artificial Insemination – Artificial insemination is the artificial introduction of semen from a male with desirable traits into females of the species to produce pregnancy, and is useful because a far larger number of offspring can be produced than would be possible if the animals were traditionally bred. MOET is the production of multiple embryos from a female with desirable traits, which are then implanted in the wombs of other females of the same species. 5. Cloning – Cloning, an asexual method of reproduction, produces an individual with the same genetic material (DNA) as another individual. Animals have been cloned by three processes: embryo splitting, blastomere dispersal, and nuclear transfer. Nuclear transfer is most common and involves enucleating an ovum, or egg, with all the genetic material removed. Implications Selective breeding programmes have resulted in higher yields and better disease resistance. Ultimately, breeding goals are dictated by market demand; however, it is not easy to predict what consumers will want several years in advance. Although it is extremely effective, there are disadvantages to this method. One of these is that for animal breeding to be performed productively, a number of animals must be involved in the process. Another problem is that undesirable traits can also mistakenly be selected for. For this reason, too much inbreeding will produce sickly or unproductive stock, and at times it is useful to breed two entirely different strains with each other. The resulting offspring are usually extremely healthy; this is referred to as hybrid vigor. Usually hybrid vigor is only expressed for a generation or two, but crossbreeding is still a very effective means to combat some of the disadvantages of inbreeding. Another practical disadvantage to selective inbreeding is that the DNA of the parents is altered during the production of eggs and sperm. In order to make eggs and sperm, which are called gametes, a special kind of  cell division  occurs called  meiosis, in which cells divide so that each one has half the normal number of chromosomes (in humans, each sperm and egg contains 23 chromosomes). Before this division occurs, the two pairs of chromosomes wrap around each other, and a phenomenon known as crossing over takes place in which sections of one chromosome will be exchanged with sections of the other chromosome so that new combinations are generated. The problem with crossing over is that some unexpected results can occur. For instance, the offspring of a bull homozygous for two recessive but desirable traits and a cow with normal genes will all have one copy of each recessive gene. But when these offspring produce gametes, one recessive gene may migrate to a different chromosome, so that the two traits no longer appear in one  gamete. Since most genes work in complicity with others to produce a certain trait, this can make the process of animal breeding very slow, and it requires many generations before the desired traits are obtained—if ever. Conclusion The evolution of scientific methods has been contributed lot through time. In the agricultural and horticultural environment, the transgenic and selective breeding methods have been improved livestock and better animal/plant health. Beyond, the researchers can contribute in fields such as medic and industrial. The techniques in both processes stimulate knowledge and improve the technology, resulting in employment and better conditions to the future. However, transgenesis and selective breading involve the manipulation of the natural order, bringing a polemic topic.  But, if the scientists follow the ethic process and rules determinate by superior agencies, always thinking about the society over the individual, they may have good results, supporting the future generations. Therefore, all the opinions about the topic must be discussed and respected.