The macromolecule found in the cell walls of all bacteria is
A.
lipid A.
B. teichoic acid.
C. peptidoglycan.
D. glycocalyx.
C
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Direct selection involves inoculating cells onto growth media on which
A. the mutant but not the parental cell type will grow. B. the mutation will be reversed. C. the nutrients necessary for mutation to occur are present. D. the mutagen is present.
To form a blood clot, a series of plasma proteins must activate in a given sequence. If DNA info for one such protein mutates such that the resulting protein is nonfunctional, predict the consequence.
A. It depends on which protein is affected. B. Regardless of the protein involved, the clot would not form.
After ovulation, the mature follicle becomes the corpus luteum
Indicate whether the statement is true or false
Consider a population in which two alleles segregate with the following frequencies: p = 0.7, q = 0.3. If no evolutionary forces act on this population, the frequencies of p will equal _______ and q will equal_______ after 30 generations
a. 0.3, 0.7 b. 0.5, 0.5 c. 0.75, 0.25 d. 1, 0 e. None of the above