Somatic cells ___________________________
(a) are not necessary for sexual reproduction in all eukaryotic organisms.
(b) are used to produce germ-line cells when organisms reach sexual maturity
(c) leave no progeny.
(d) do not contain sex chromosomes.
Choice (c) is correct. Somatic cells are used to form the rest of the animal's body, which is required to support sexual reproduction even if these cells are not used to generate the germ cells [choice (a)]. Germ-line cells are generally specified early in development, before organisms reach sexual maturity [choice (b)]. Somatic cells do contain sex chromosomes [choice (d)].
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