Question

Direction of RNA synthesis and direction of reading of the template DNA strand is

• A. 5' - 3' and 3' - 5'
• B. 3' - 5' and 5' - 3'
• C. 5' - 3' and 5' - 3'
• D. 3' - 5' and 3' - 5'

Answer 1

The correct option is A 5' - 3' and 3' - 5'

Transcription and replication both occur in 5' - 3' direction. Thus, template DNA has 3' - 5' reading frame.