Which is true about mRNA?
A) It contains a _OH at the 5' carbon of its ribose moieties.
B) A copy of its nucleotide sequence can be found in the genetic material
C) Analysis of its nucleotide composition reveals that it obeys Chargaff's rules.
D) It contains a hydrogen at the 2' carbon of its ribose moieties.

Question

Quizplus · Accepted Answer

mRNA stands for messenger RNA and is a type of RNA molecule that carries genetic information from DNA to ribosomes, where it is used to synthesize proteins. Therefore, a copy of its nucleotide sequence can be found in the genetic material (DNA).

The other answer choices are incorrect because:

A) mRNA contains a phosphate group at the 5' carbon of its ribose moieties, not a _OH group. 
C) mRNA does not necessarily obey Chargaff's rules because it is a type of RNA, not DNA. Chargaff's rules only apply to DNA base pairing. 
D) mRNA contains a _OH group at the 2' carbon of its ribose moieties, not a hydrogen.

Which Is True About MRNA