Multiple choice

Which one of the following statements is true?

P. Enzyme required for removing RNA primer during DNA replication is DNA primase. Q. The enzyme DNA polymerase can work only in 3’→5’ direction. R. The enzyme that cuts the bonds of DNA molecule at the origin of replication is restriction endonuclease. S. The enzyme required to release the tension imposed by uncoiling of strands is DNA gyrase.

Select the correct answer using codes given below:

  1. P and Q

  2. P and S

  3. Q and R

  4. Q and S

  5. R and S
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

The enzyme that cuts the bonds of DNA molecule at the origin of replication is restriction endonuclease. The enzyme required to release the tension imposed by uncoiling of strands is DNA gyrase.

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