The phenomenon of chance events causing the allele frequencies in a population to change unpredictably is known as
____.
a. genetic drift
b. gene flow
c. deleterious mutations
d. nonrandom mating
e. natural selection
ANSWER: a
You might also like to view...
The end of the skeletal muscle that remains stationary during a movement is
(a) the action. (b) the origin. (c) the insertion. (d) none of the above.
How can the preservation of biological diversity be justified? Check all that apply.
_____ ethical grounds. _____ supernatural responsibility. _____ economic value. _____ ecological value. _____ exploitative value.
Which of the following is NOT produced by the
gonads? a. testosterone b. progesterone c. follicle-stimulating hormone d. androgens e. estrogens
The results of the experiments of Avery and his colleagues indicate that
A. proteins are antigens. B. proteins transfer genetic information. C. capsule formation is mediated by RNA. D. DNA is the transforming material. E. DNA replication is semiconservative.