The random change in frequency of a genetic variant in a population is called

a. negative selection.
b. gene conversion bias.
c. purifying selection.
d. genetic drift.
e. positive selection.


Ans: d

Biology & Microbiology

You might also like to view...

Which of the following tissues contain dead cells at maturity?

a. cork b. epidermis c. parenchyma d. phloem

Biology & Microbiology

The genetic material of HIV consists of _____.

a) single-stranded DNA b) single-stranded RNA c) double-stranded DNA d) double-stranded RNA e) none of the above

Biology & Microbiology

Hormonal messages can be generally described as:

A) digital B) all-or-none C) analog D) high-threshold responses

Biology & Microbiology

You are observing a cell through a microscope and note that it has no apparent nucleus. You conclude that it most likely

a. Has a peptidoglycan cell wall. b. Has a cellulose cell wall. c. Moves by pseudopods. d. Is part of a multicellular animal. e. Is a plant cell.

Biology & Microbiology