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

Question

Quizplus · Accepted Answer

The fertilizing sperm contributes primarily DNA and very little to no cytoplasm to the zygote, whereas the egg provides most of the cytoplasm, including mRNA and proteins, making the maternal contribution dominant in the early stages of development.

Most of the MRNA and Protein Molecules in the Zygote