Home Biology Biotechnology Principles and Processes Statement Based Questions Read the following statements for restrictio…
Biology Biotechnology Principles and Processes Statement Based Questions Single Correct MCQ
Published on: August 13, 2026

Read the following statements for restriction enzymes and choose option which have only correct ones.

A
Restriction enzymes belongs to a large class of enzymes called nuclease.
, and , and
B
Restriction enzymes are of two kinds exonuclease and endonuclease.
and only
C
Restriction enzymes are so called because these only identify particular nucleotide sequence.
and
D
In nature approximately 900 restriction enzymes are present. only

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The correct answer is:
B

Restriction enzyme are of two type exonucleases and endonucleases. Exonucleases remove nucleotides from the ends of the DNA whereas, endonucleases make cuts at specific positions within the DNA. More than 900 restriction enzymes that have been isolated from 230 strains of bacteria.

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