If two randomly selected alleles are sampled from a population of oak trees where there is no selection, assortative mating, or migration, by how many mutations would we expect these alleles to differ?
a. 2k
b. 4k
c. 2Ne
d. 4Ne
e. 4Ne?
E
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In an agar dilution tube, microbial colonies grow
A) at the bottom of the tube. B) on the sides of the tube, although some may be at the surface. C) embedded in the agar, rather than growing on the surface. D) on the surface, but some creep down the sides away from the surface.
The release of cyclic AMP as a second
messenger is a response to ____ hormones. a. peptide b. steroid c. protein d. peptide and protein e. peptide, steroid, and protein
The first major divergence of life gave rise to all of
the following except a. bacteria. b. archea. c. ancestors of the eukaryotes. d. endomembrane system. e. all of these.
The effect of inositol triphosphate is usually transient because __________.
a) it is slowly activated enzymatically b) it is rapidly inactivated enzymatically c) it is so big d) it is so small e) it is so stable