Machine-translated by Google. Questions are authored in English.
Top

Discussion

The role of primase is to

  • A.dismantle RNA primer
  • B.cleave and unwinds short sections of DNA ahead of the replication fork
  • C.proofread base pairing
  • D.synthesize an RNA primer to begin the elongation process

Answer: D

Correct answer: synthesize an RNA primer to begin the elongation process

DNA polymerase can extend a chain but cannot start one, since it needs a free 3’-OH to attack. Primase supplies that by laying down a short RNA primer - once on the leading strand, and once for every Okazaki fragment. The primers are later removed and replaced with DNA.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.