Which one of the following proteins is not known to regulate translation through interaction with the 3' UTR of the mRNA?
A. CPEB
B. Maskin
C. eIF4E
D. PUF proteins
C
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A digestive tract is complete if it
a. possesses specialized regions for different digestive tasks. b. produces acids and contains enzymes. c. is a one-way tube with a mouth and an anus. d. is surrounded by muscle. e. uses the same opening for ingestion and egestion.
Kin selection is defined as:
a. selection for a behavior that raises an individual's own chances of survival or reproduction, as well as those of a related individual. b. selection for a behavior that lowers an individual's own chances of survival or reproduction, but raises those of a relative. c. selection for a behavior that lowers an individual's own chances of survival or reproduction, but raises those of another individual who may be reciprocally altruistic. d. selection that operates not just on one individual, but on all of its relatives as well. e. None of the above is correct.
When calculating the allele frequency for allele A in a population, why do you multiply the frequency of individuals who are homozygous for A by 2?
A. Because if A is dominant, it will show up twice as much. B. Because each individual homozygous for A has two copies of the allele. C. Because there are always twice as many homozygous individuals as heterozygous individuals. D. Because individuals homozygous for A will produce twice as many offspring. E. Because individuals homozygous for A will be twice as likely to survive.
Which of the following is true about temporal variation in community biomass?
A. It is a characteristic of high species richness. B. It increases with increases in species richness. C. It decreases with increases in species richness. D. It is predicted by the intermediate disturbance hypothesis. E. It is predicted by Clements' organismic model of community function.