The results shown in the graphs support the hypothesis that _____
A) adding the defensin gene to such mutants protects them from death by fungal infection
B) adding the drosomycin gene to such mutants protects them from death by fungal infection
C) wild-type flies with the full set of genes for antimicrobial peptides are highly susceptible to these infective agents
D) the presence of any single antimicrobial peptide protects against both infective agents
E) even the wild-type flies rarely, if ever, survive for five days
Answer: B
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The degree of parental investment required often results in the nonrandom mating behavior called ________.
A. mate choice B. allopatry C. fidelity D. preferability
____ would keep a population in Hardy-Weinberg equilibrium.
A. Gene flow B. Mutation C. Selection D. Genetic drift E. Random mating
What characteristic suggested that the diet of early primates changed from eating insects, fruits and leaves to a mixed
diet? a. changes in vision b. changes in teeth and jaws c. Bipedalism d. changes in brain size and development e. behavioral changes
In photosynthesis, ATP is made by
A. the Krebs cycle. B. the passing of electrons from photosystem I to an electron transport chain. C. chemiosmosis. D. glycolysis. E. the Calvin cycle.