Molecular Basis of InheritanceHard
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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