If you sampled the genetic characteristics of a large
population and found that of the 50 loci analyzed
there is very little, if any, variation, the most likely
explanation is that
a. a uniform environment selected for these alleles.
b. there has been a lack of migration, and the
genetic equilibrium stabilized the population.
c. strong selection pressures eliminated alternative
alleles.
d. a bottleneck effect may have occurred in the past
to reduce the variability in the population.
e. a combination of low mutation rates and
differential sexual selection produced these
results.
Answer: d
You might also like to view...
Perforin is produced by
A. B cells. B. macrophages. C. NK cells. D. T helper cells. E. macrophages AND NK cells.
Elaborate on the idea that proteins are the workhorse molecules of the cell. What will be an ideal response?
Autoimmunity is a(n):
a. automatic response to an antigen. b. failure of self cell recognition. c. reaction to environmental antigens. d. normal response to infection. e. response between the autonomic nervous system and the immune system.
Which option correctly lists the sequence in which most animals develop?
A) zygote, cleavage, blastula, gastrula, organ formation B) cleavage, zygote, gastrula, blastula, organ formation C) zygote, cleavage, gastrula, blastula, organ formation D) zygote, cleavage, organ formation, blastula, gastrula