Fertilization stimulates
A) addition of 7-methylguanosine caps to pre-mRNAs.
B) the lengthening of poly-A sequences to stored mRNAs in eggs.
C) removal of introns from pre-mRNAs.
D) the degradation of early developmental mRNAs.

Question

Quizplus · Accepted Answer

Lengthening of poly-A sequences to stored mRNAs in eggs is one of the events that occur during fertilization. This improves the stability of the mRNA and allows for translation to occur during early development. Addition of 7-methylguanosine caps to pre-mRNAs occurs during transcription and is not directly stimulated by fertilization. Removal of introns also occurs during transcription and is not directly affected by fertilization. The degradation of early developmental mRNAs occurs during later stages of development and is not stimulated by fertilization.

Fertilization Stimulates