Which of the following is TRUE regarding eukaryotic mRNAs?
(I)They uniformly stable.
(II)The poly (A)tail appears to partially Moderate the rate of degradation.
(III)The 5' cap appears to partially Moderate the rate of degradation.
(IV)They have decay times ranging from 10-30 minutes.
A)I,II
B)II,III
C)II,IV
D)III,IV
E)II only

Question

Quizplus · Accepted Answer

Option I is false as eukaryotic mRNAs are not uniformly stable.
Option II is true as the poly (A) tail plays a role in regulating mRNA degradation.
Option III is true as the 5' cap also plays a role in regulating mRNA degradation.
Option IV is false as eukaryotic mRNAs have decay times ranging from several minutes to several hours. Therefore, options II and III are the correct choices.

Which of the Following Is TRUE Regarding Eukaryotic MRNAs