First slide

Tools of Recombinant DNA Technology

Question

The biological scissors are :
i. Restriction enzymes that are used to cut DNA into nucleotide monomers.
ii. Enzymes always cut the DNA at specific nucleotide sequences.
iii. Present variously recognizing and cutting different DNA sequences.
Select the option with the correct statement/s.

Easy

A

i and ii
B

ii and iii
C

i and iii
D

i, ii and iii

Solution

The cutting of DNA at specific locations became possible with the discovery of the so-called ‘molecular scissors’– restriction enzymes. Each restriction endonuclease recognises a specific palindromic nucleotide sequences in the DNA.

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