During splicing, pre-mRNAs go through an intermediate stage when they are shaped like
A) a lariat.
B) a circle.
C) the Greek letter theta ($\sigma$).
D) a cross.

Question

Quizplus · Accepted Answer

During splicing, pre-mRNAs form a lariat structure where the 5' end of the intron becomes covalently linked to the branch point adenine, forming a loop that is eventually released.

During Splicing, Pre-MRNAs Go Through an Intermediate Stage When They σ\sigmaσ

During Splicing, Pre-MRNAs Go Through an Intermediate Stage When They $\sigma$