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

Discussion

Which of the following is true about DNA polymerase?

  • A.It can synthesize DNA in the 5’ to 3’ direction
  • B.It can synthesize DNA in the 3’ to 5’ direction
  • C.It can synthesize mRNA in the 3’ to 5’ direction
  • D.It can synthesize mRNA in the 5’ to 3’ direction

Answer: A

Correct answer: It can synthesize DNA in the 5’ to 3’ direction

DNA polymerase adds each nucleotide to a free 3’-OH, so the strand can only grow 5’→3’. It makes DNA, not mRNA - that is the job of RNA polymerase, which also works 5’→3’.

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

Post your comment

Please log in or register to post a comment.