During Transcription,the Synthesis of the MRNA Strand Proceeds in Which

Question

During transcription,the synthesis of the mRNA strand proceeds in which direction?
A)5' to 3' only
B)3' to 5' only
C)Both 5' to 3' and 3' to 5'
D)Either 5' to 3' or 3' to 5'
E)First 5' to 3',and then 3' to 5'

Accepted Answer

Transcription occurs in the 5' to 3' direction. This means that the RNA polymerase enzyme reads the DNA template strand in the 3' to 5' direction and synthesizes the RNA strand in the complementary 5' to 3' direction.