What is the consequence of a deleterious mutation becoming fixed in a population?
a. Muller's ratchet will automatically move an additional turn.
b. Recombination cannot remove the mutation.
c. Mating between unrelated individuals can produce offspring that does not carry the mutation.
d. Muller's ratchet may move an additional turn.
e. B and D.
E
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Which of the following is not a function of the kidneys?
A. All of these answer options are functions of the kidneys. B. elimination of toxic compounds C. regulation of water levels in the body D. regulation of electrolyte levels in the body E. regulation of blood pressure
Female gametophytes develop specifically within what part of the flower?
A. anther B. stamen C. stigma D. ovule E. central cell
Evidence of previously existing life is found in
A. viruses. B. proteins. C. DNA. D. fossils.
According to the figure, what is a likely day of implantation?
A. Day 21 B. Day 27 C. Day 13 D. Day 3 E. Day 7