Question

All of the following are true of eukaryotic mRNA EXCEPT that:

A. transcription occurs in the 5'--> 3' direction.
B. the 5' end is usually capped.
C. the mRNA is smaller than the initial transcript.
D. it is polycistronic

Answer 1

All of the statements are true of eukaryotic mRNA except that it is polycistronic.

Step-by-step explanation:

All of the statements are true of eukaryotic mRNA except option D, which states that it is polycistronic. Eukaryotic mRNA is transcribed in the 5'--> 3' direction, has a 5' end that is usually capped, and is smaller than the initial transcript due to RNA processing, including splicing and the addition of a 3'-poly-A tail. However, eukaryotic mRNA is not polycistronic; it is monocistronic, meaning it encodes only one protein.