Which term from the Hardy-Weinberg equilibrium represents the frequency of the homozygous dominant genotype?
a. pq
b. p 2
c. 2pq
d. q 2
Answer: b. p 2
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Which of the following brain structure?function sets are incorrectly matched?
a. medulla oblongata ? controls breathing and heart rate b. cerebellum ? balances and coordinates muscle movement c. thalamus ? relays sensory input to the cerebrum d. hypothalamus ? controls voluntary movements e. olfactory bulbs ? replays sensory information about odors to the cerebrum
____ is a passive transport plasma membrane protein that forms a pore through which water (but not solutes) can flow
freely across the membrane. a. ADH b. A sodium ion c. Ketone bodies d. Aquaporin e. Angiotensinogen
Which of the following experimental procedures is most likely to speed up mRNA degradation in a eukaryotic cell?
a. removal of one or more exons b. lengthening of the poly-A tail c. removal of the 5' cap d. removal of C nucleotides
The movement of water through a selectively permeable membrane from areas of high concentration to areas of low concentration until equilibrium is reached can be described as ________
A) diffusion B) active transport C) osmosis D) All of the above are true.