(D) Restriction endonucleases are the enzymes that cleave $DNA$ molecules at specific nucleotide sequences known as restriction sites.$DNA$ ligase is

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$DNA$ ligases are used to cleave a $DNA$ molecule.

(D) Restriction endonucleases are the enzymes that cleave $DNA$ molecules at specific nucleotide sequences known as restriction sites.$DNA$ ligase is an enzyme that acts as a 'molecular glue' to join bits of $DNA$ fragments together.Therefore,the statement that $DNA$ ligases are used to cleave a $DNA$ molecule is incorrect.

Class 12 Biology Biotechnology Principals and Process Tools of recombinant DNA technology

Medium

Find out the wrong statement.

A
Mobile genetic elements,transposons were visualized by Barbara McClintock.
B
Udder cell,a somatic cell is used to produce the cloned sheep by nuclear transplantation method.
C
In pedigree analysis,a person immediately affected by an action is called propositus.
D
$DNA$ ligases are used to cleave a $DNA$ molecule.