Question

Which of the following statements is true of mRNA?

A. None of these
B. It is a long-lived molecule.
C. It contains 73-93 nucleotides per chain.
D. Its nucleotide sequence is complementary to that of a DNA strand being transcribed
E. It is produced in the ribosomes of a cell during a process called translation.

Answer 1

mRNA is a single stranded transcript of DNA and its nucleotide sequence is complementary to that of a DNA strand being transcribed.

Step-by-step explanation:

Of the given statements, option D is true of mRNA. mRNA stands for messenger RNA and it is a single stranded transcript of DNA.

During the process of transcription, mRNA is synthesized by complementary base pairing with the DNA template strand.

The nucleotide sequence of mRNA is complementary to that of the DNA strand being transcribed, except that in mRNA, thymine (T) is replaced by uracil (U).

This complementary sequence of mRNA allows it to act as a template for protein synthesis during the process of translation.