First discovered restriction endonuclease that always cuts DNA molecule at a particular point b

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9.Biotechnology Principals and Process

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First discovered restriction endonuclease that always cuts $DNA$ molecule at a particular point by recognising a specific sequence of six base pairs is

A

Hind $II$

B

EcoR $I$

C

Adenosine deaminase

D

Thermostable $DNA$ polymerase

(NEET-2020)

Solution

The first restriction endonuclease is Hind II.

EcoRI is obtained from Escherichia coli Ry13

Thermostable DNA polymerase is used in PCR called Taq polymerase

ADA enzyme is crucial for the immune system to function. In SCID, there is deficiency of ADA enzyme.

Standard 12

Biology

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