All of the following statements concerning mRNA are true EXCEPT which one?
A) RNA polymerase II is responsible for mRNA synthesis.
B) The initial transcription product is a high molecular weight precursor termed heterogeneous nuclear RNA.
C) mRNA contains a cap structure at its 5' end but hnRNA does not.
D) The leader sequence at the 5' end of the mRNA molecule does not code for any amino acids.
E) Both hnRNA and mRNA contain poly(A) at their termini.

Question

Quizplus · Accepted Answer

This statement is false as mRNA contains a cap structure at its 5' end, while hnRNA does not. The other statements are true: RNA polymerase II is responsible for mRNA synthesis, the initial transcription product is hnRNA, the leader sequence at the 5' end of the mRNA does not code for any amino acids, and both hnRNA and mRNA contain poly(A) at their termini.

All of the Following Statements Concerning MRNA Are True EXCEPT