Reinforcement is most likely to drive the evolution of
A. prezygotic isolating mechanisms, because selection favors alleles that prevent hybridization.
B. postzygotic isolating mechanisms, because selection acts after the formation of hybrids.
C. prezygotic isolating mechanisms, because selection favors alleles that promote hybridization.
D. postzygotic isolating mechanisms, because hybrids have low fitness relative to the parents.
A. prezygotic isolating mechanisms, because selection favors alleles that prevent hybridization.
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E. coli SSB35 differs from SSB65 due to:
A. primary sequences at amino termini. B. number of protomers. C. number of OB folds. D. extent of interaction with DNA. E. regions of contiguous A=T pairs.
Which of the following is a natural process of plants that can be used by humans to remove toxins from soils? Check all that apply.
_____ secretion of a substance from the roots that breaks down the toxic chemical _____ "storage" of a toxic chemical in plant tissues, which are then removed from the site _____ root pressure pushing toxins from deep in the soil towards the surface _____ physiological breakdown of the chemical into harmless products _____ transport of toxins absorbed by the roots into the shoots, where they can be collected more easily
Although an "obvious" extension of evolutionary theory, evolution does not address
A. the roles of mutations in evolution. B. which genotypes are inherited by each offspring from its parents. C. what variations are in each gene pool. D. All of the answer choices are correct. E. how life began.
A sexually transmitted protistan disease is:
a. trichomoniasis b. toxoplasmosis c. trypanosomiasis d. malaria