Multiple choice

Which of the following hydrolyses internal phosphodiester bonds in a polynucleotide chain?

  1. Lipase

  2. Protease

  3. Exonuclease

  4. Endonuclease

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Endonuclease hydrolyses internal phosphodiester bonds in a polynucleotide chain. Restriction endonucleases (restriction enzymes) are divided into three categories: Type I, Type II, and Type III