The natural function of ________ is to cut the DNA of invading plasmids and phages at specific sequences.
A) topoisomerases
B) restriction endonucleases
C) ligases
D) RNases
E) gyrases

Question

Quizplus · Accepted Answer

Restriction endonucleases cut DNA at specific sequences, often for defense against invading plasmids and phages. Topoisomerases relieve torsional strain in DNA, ligases seal nicks in DNA, RNases degrade RNA, and gyrases relieve supercoiling in DNA.

The Natural Function of ________ Is to Cut the DNA