Question

5. (2 pts) The mutation supply rate:

A. is the rate at which new beneficial mutations arise in a population

B. is constant and does not evolve

C. indicates the rate at which new genetic variation arises in a population

D. is higher in smaller populations

.

6. (2 pts) If a bacterial cell is competent, it means that

A. it is able to withstand exposure to several different antibiotics and is difficult to kill.

B. the bacterium expresses a sex pilus that mediates membrane fusion between two cells and

creates a conjugation bridge.

C. the bacterium is able to replicate its DNA and undergo cell fission.

D. the bacterium can import free DNA fragments and incorporate them into its genome.

Answer 1

5) Option A

The mutation supply rate is the rate at which new beneficial mutations arise in a population. It is the product of effective population size and mutation rate.

6) Option D

If a bacterial cell is competent, it means that the bacterium can import free DNA fragments and incorporate them into its genome.The most common method for making a bacterial cell competent is CaCl2 treatment.