1.explain why only populations evolve but individuals do not. Be as specific as
ID: 50145 • Letter: 1
Question
1.explain why only populations evolve but individuals do not. Be as specific as possible.
2.explain how DNA plasmids and bacteria are used in a cloning project such as our lab experiments with the red florescent protein (rfp). Be as specific as possible.
3.A common argument against the use of Genetically Modified crops is the possibility of the formation of "superweeds" or weeds that have obtained genetic traits from GM plants. In 2-4 sentences, compare and contrast how superweeds could cause the same types of environmental problems as the introduction of exotic species into ecosystems. Be specific in your answer.
4.You get into a discussion with a fellow student who believes in intelligent design. This student says that evolution is just a theory and offers the following arguments against evolution: (1) evolution has never been observed; (2) there is missing evidence for evolution, such as transitional fossils; (3) evolution violates the 2nd law of thermodynamics; (4) the theory of evolution says that life originated, and evolution proceeds, by random change. Pick one of these arguments and explain how you would refute this argument. Be as specific as possible.
Explanation / Answer
1. Individuals do not evolve because genetics of the individuals does not undergo a rapid change. But population genetics change rapidly as the individuals compete for survival and successful reproduction. Organisms that acquire best genetics from their parents tend to pass them to their offsprings. So, the overall population get evolved, however in the absence of evolution in the individual level.
2. Plasmids are easy to manipulate because of their simple structure and small size. They are very good vectors for molecular biology experiments. Bacteria are easy to grow in laboratory. We can easily regulate their growth, and select the specific one as per our need. These characters make them good for cloning projects.
3. Genetically modified plants are designed in such a way to acquire pest resistance, and resistance to chemical treatments. If superweeds acquire the same genetic traits from GM plants, then it would become difficult to control superweeds population by any possible means. So, they grow in an uncontrolled manner like exotic species and possess threat to the local plant population.
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