To Meet a Zygote's Metabolic and Developmental Requirements

Question

To meet a zygote's metabolic and developmental requirements
A)maternal RNA and maternal proteins must be present.
B)paternal RNA and maternal proteins must be present.
C)the haploid DNA in the nucleus must be transcribed.
D)the nucleus must have hundreds of copies of every gene, allowing a high rate of gene expression.
E)the zygote must continuously undergo endocytosis of proteins to take them from its environment.

Accepted Answer

Maternal RNA and proteins are present in the egg cell and are necessary for meeting the zygote's metabolic and developmental requirements. Paternal RNA is not present in the egg cell and would not contribute to the zygote's development. The haploid DNA in the nucleus must eventually be transcribed, but this occurs after fertilization when the zygote begins to divide. The nucleus does not need hundreds of copies of every gene, and endocytosis of proteins is not the primary way that the zygote acquires the nutrients it needs for development.