You will act as the spokesperson for that food trying to get consumers to buy your food. Include the following information: 1.Type of food Long-lasting tomatoes 2. How was the food genetically modified? It was modified to produce less of the substance that causes the tomato to rot 3. What is the benefit of the modification?
Corn also became an important part of the diets of the people of the regions it spread to. Maize is believed to have come from the domestication of a tall Mexican grass called Teosinte. It was domesticated in the Tehuacan Valley of Mexico where the Mayans and Aztecs grew the corn. The first corn grew about 7000 years ago in Mexico (Gibson and Benson “Origin History of Corn”). Over a period of 1000 years the Native Americans transformed Maize by using selective breeding.
(A 1 a, B 1 b, C 1 c, D 1 d). When crossing over occurs, the chromosomes will cross and the genes will be exchanged from one chromosome to another. (A 1 a, b1 B, c 1 C, D 1 d). Crossing-over occurs during meiosis I. 15.
The manipulation of genes in crops is expected to improve their nutritional value as also their rate of growth. Biotechnology, the science of genetically engineering foods, can be used to impart a better taste to food. Pest-resistant Crops and Longer Shelf life Engineered seeds are resistant to pests and can survive in relatively harsh climatic conditions. The plant gene At-DBF2, when inserted in tomato and tobacco cells is seen to increase their endurance to harsh soil and climatic conditions. Biotechnology can be used to slow down the process of food spoilage.
To confirm this idea, Marshall Nirenberg used a synthetic RNA containing only one kind of base. What question was his experiment attempting to answer? 8. Briefly describe Seymour Benzer’s experiment that answered the question: “Do mutations in the DNA sequence of a gene correlate with protein changes?” 9. Marshall Nirenberg and Heinrich Matthaei used mRNA made up of repeating uracil nucleotides in a cell free extract.
Plants and animals naturally go through a process of selection for survival. Features that make the plant or animal more likely to live are passed along, and features that are not advantageous are weeded out. These genetic mutations occur over generations, though, making improvement a slow moving process. Scientists discovered that they could improve specific characteristics quickly by introducing foreign genes into an organism, such as those from plants, animals, and even viruses. For example, exposing a plant to a certain virus can make it more resistant to disease.
Iowa grows the most corn of all 12 states. They grow the majority of corn produced in the States. 8) Corn is used for a variety of non-food sources form adhesives to explosives. It is also used in plastic and has a total of about 400 non-food uses. 9) Corn as we know it was not found in nature, but was developed over
It is obvious that when people pay money for something they buy, they want to know what exactly things are (such as nutrition percentage or calories content). The foods we eat are particularly related to people’s health. Second, genetically modified food can unexpectedly transform some components into different ones and cause allergies in some people. To illustrate, genes that were changed in genetically modified foods may contain strange substances that produce allergic reactions for purchasers. For example, tomatoes are injected with fish gene to make a new product with better quality because the components in fish can protect fruit from freezing.
Genetically modified organisms are the forefront of scientifically modified crops in the food industry today. Genetically modified means organisms that has had it genetic makeup altered using genetic engineering. This type of genetic engineering has mixed response with the food industry and people who are involved in sustainable development, meaning there are people who think that it is the forefront for the next generation and there are also people who think that it is the worst thing to do for our generation. In today’s society there is many different views on the matter especially when it involves the big chain supermarkets such as Tesco, Sainsbury’s, Asda, Waitrose, Marks and Spencer’s etc. Big supermarkets like Tesco, Waitrose has expressed that GM crops are banned in their supermarkets due to their customers wanting the purest products available on the market therefore their customers will not buy their products if they sell GM products.
This way of improving foods has been taking place traditionally by just crossing two plants together and hoping that the new traits are taken without any negative ones (543). Since this is time consuming and not as accurate, scientists now just introduce the new genes, or traits, through the plants’ DNA. Genetically Engineered foods, although meant to be helpful, pose many problems by causing environmental hazards, human health risks, and economic concerns. To begin with, one of the problems with engineered foods is that they can become hazardous to the surrounding environment. This unintended harm to other organisms is caused by many factors.