1. How do bacteria acquire genetic variation and how does that differ from the m

Question

1. How do bacteria acquire genetic variation and how does that differ from the mechanism by which humans acquire variation?

2 What were the key observations made by Darwin to develop the basic tenants of the theory of evolution? Has this theory been tested?

3. What are the most common misconceptions about evolution and why are they not valid arguments against evolution?

4. The key component of the theory of evolution is natural selection. Define this process. Why is it commonly known as “survival of the fittest”? What are examples of factors (selective pressures) that drive evolution of populations?

5. What is the indirect evidence of evolution? What are homologous andanalogous structures? What is convergent evolution? How does similarity of proteins between different species support the idea of evolution?

6. Be able to explain why the following statement is true: Natural Selection works on individuals while evolution works on populations over generations. Or to put it another way: Individuals do not evolve, populations do.

Explanation / Answer

1. In sexual organisms, genetic variation is obtained in either "mutations in DNA" or "recombination of existing DNA in sexual reproduction." Whereas, the bacteria are asexual organims that obtain genetic variation through "Mutations" and asexual transmission of genetic material through conjugation.

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