Principle of Inheritance and VariationHard

Question

Recombinatnt DNA is obtained by cleaving the pro - DNA by

Options

A.primase
B.exonucleases
C.ligase
D.restriction endonclease

Solution

Restriction endonclease is a class of endoncleases which cleaves double stranded DNA at specific base sequences, called restriction sites. W Arber postulated the presence of restriction enzymes, while dirst true restriction endonclease was isolated in 1970 by Smith et al, for which they were awarded Nobel Prize in 1978.

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