The 5ʹ cap in an mRNA plays a role in translation initiation. Which of the following could be a plausible mechanism by which a 5ʹ cap could enhance initiation?
A) The 5ʹ cap could assist in bringing together the snRNPs for spliceosome assembly.
B) The 5ʹ cap could recruit proteins that would help to assemble the ribosomes.
C) The 5ʹ cap could assist in the identification of stop codons within the mRNA.
D) The 5ʹ cap could serve as a marker for the ribosome to locate promoters.
E) The 5ʹ cap could assist in the unwinding of the DNA to allow ribosome access to the DNA.

Question

Quizplus · Accepted Answer

The 5ʹ cap recruits proteins, such as the eukaryotic initiation factors, which help in assembling the ribosome on the mRNA, facilitating translation initiation.

The 5ʹ Cap in an MRNA Plays a Role in Translation