Multiple Choice
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'
Correct Answer:

Verified
Correct Answer:
Verified
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