Divergent evolution occurs when:
a. closely related populations or species diverge from one another because natural selection op-erates differently on each of them.
b. two or more populations or species become more similar to each other because they are ex-posed to similar selective conditions.
c. Both of the above.
d. Neither of the above.
A
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Modular portions of a protein that fold into stable conformations with specific functional capabilities are referred to as ________
A) protein chaperones B) protein secondary structures C) protein quaternary structures D) protein domains E) protein subunits
The conversion of amino acids to carbohydrates is an example of
A. amination. B. gluconeogenesis. C. substrate-level phosphorylation. D. beta-oxidation. E. electron transport.
Immediate hypersensitivity is ________ mediated, and delayed type hypersensitivity is ________ mediated
a. antibody / cell b. cell / antibody c. Th1 / IgE d. IgG / Th2
Echinoderms and chordates are
(a) deuterostomes. (b) protostomes. (c) animals whose blastopore becomes a mouth. (d) both b and c.