What would happen if snRNAs could not recognize the branch point?
A)A lariat structure could not form.
B)snRNAs could not base-pair with the 5' end of the intron.
C)The 3' poly A tail could not be added to the transcript.
D)The 5' cap could not be added to the transcript.

Question

Quizplus · Accepted Answer

If snRNAs could not recognize the branch point, a lariat structure could not form. The lariat structure is essential for splicing out the intron from the pre-mRNA. Without it, the processed mRNA would not be functional as it would contain non-coding sequences.

What Would Happen If SnRNAs Could Not Recognize the Branch