1.In DNA cloning experiments such as the one we are carrying out in lab, we sele
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Question
1.In DNA cloning experiments such as the one we are carrying out in lab, we select for bacteria that have taken up the desired plasmid based on the plasmid providing _________________ (two words) to the bacteria
2."evolution has never been observed explain" how you would refute this argument. Be as specific as possible.
3.explain why only populations evolve but individuals do not. Be as specific as possible.
4.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.
5. Darwinian Medicine as a theory can do all of the following except
a) explain how a fever is a helpful response to infections
b) explain why morning sickness provides a selective advantage
c) help to develop new treatments to fight disease
d) all of the above are true
6: When populations of the same species are geographically isolated as in the Galapagos Islands, evolutionary processes such as speciation can occur because
a) environmental conditions will differ between the locations and select for different traits in the population
b) individuals within the population will breed with different species in
c) the new location the new locations will stimulate the formation of new mutations in the individuals
Explanation / Answer
1- bacterial plasmid have different antibiotic resistence site like ampicillin resistence, streptomycin resistence which work as selective agent so its correct answer is Antibiotic resistence.
2- ."evolution has never been observed explain" - it is a major one misconception about evolution. evolution as a change in the gene pool of a population over time for example insect developing a resistence to a pesticides over a period of time. evolution leads to the origin of new species which is proved an lab as well as in wild. there are too much evidense present which proven this is a misconception.
3- Because individuals in a population vary, some in the population are better able to survive and reproduce given a particular set of environmental conditions. These individuals generally survive and produce more offspring, thus passing their advantageous traits on to the next generation. Over time, the population changes.
4- DNA plasmid and bacteria have less generation time, easily transformed, short genome size, do not contain introns etc these things makes suitable for cloning project.
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