Natural selection that shifts the adaptation of an entire populations is
a. stabilizing selection.
b. directional selection.
c. disruptive selection.
d. artificial selection.
e. sexual selection.
B
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CPEs are:
A. cytoplasmic sequences for polyadenylation. B. nuclear polyadenylation sequences. C. cytoplasmic proteins that disrupt the interaction between eIF4E and eIF4G. D. None of the above is correct.
Which of the following is not true of the translocation step of translational elongation in bacteria?
A. The deacylated tRNA is moved from the P site to the E site. B. EF-G binds to the A site, mimicking a EF-Tu-aminoacyl-tRNA complex. C. EF-G hydrolyzes GTP. D. The peptidyl-tRNA moves from the P site to the A site.
Water behind a dam has a certain amount of stored energy that can be released as the water falls over the top of the dam. It may be enough energy to turn a mill wheel or an electricity-generating turbine. Choose the term that best describes the type of energy stored in the water at the top of the dam.
A. Kinetic B. Potential C. Chemical D. Radiant
Reproductive isolating mechanisms typically evolve
after gene flow __________. Fill in the blank(s) with the appropriate word(s).