If there were a high allele frequency for the CCR5-32 coreceptor, and the rate of infection with HIV was high as well, one would expect the frequency of the CCR5-32 coreceptor allele to ________
A) remain the same due to the lethality of AIDS
B) remain the same due to the population maintaining Hardy-Weinberg equilibrium
C) fall quickly due to heterozygote selection
D) rise quickly and confer resistance on a large part of the population
D
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A survivorship curve with uniform death rates over time is most likely to be a type _______ curve.
A. I B. II C. III D. IV E. V
Which best describes a result of sexual reproduction?
a. The only source of variation is mutation. b. Clones of the original cell are produced. c. One cell divides to produce two identical cells. d. Two sex cells combine to form a fertilized cell. e. The offspring obtain genes only from one parent
Explain the basic mechanism CRISPR in DNA manipulation
What will be an ideal response?
Which of the following statements about smooth muscle in arterioles is FALSE?
A) The muscle is multi-unit smooth muscle. B) Muscle contraction is under intrinsic controls. C) Muscle contraction is under extrinsic controls. D) The muscle forms rings around the arteriole. E) The muscle has inherent (myogenic) tone