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Biology 14 Online
OpenStudy (anonymous):

58. Which of the following mechanisms can regulate the differential gene expression in embryonic cells needed for differentiation? (1 point) • cytoplasmic determinants already present in unfertilized eggs or newly formed zygotes • maternal hormones circulating across the placental barrier • nuclear polymerases that splice out unnecessary genes • regulatory proteins that stimulate programmed cell death (apoptosis)

OpenStudy (anonymous):

@Hero ?

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