Most of the mRNA and protein molecules in the zygote are from the ____ because ____
a. mother; the fertilizing sperm contributes essentially no cytoplasm to the zygote
b. mother; the fertilizing sperm contributes essentially no DNA to the zygote
c. mother; the proteins in the egg degrade mRNA and protein molecules contained in the sperm
d. father; the egg contributes essentially no cytoplasm to the zygote
e. father; the egg contributes essentially no DNA to the zygote
ANSWER: a
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