Q.

Given below are two statements :
Statement I : Restriction endonucleases recognise specific sequence to cut DNA known as palindromic nucleotide sequence.
Statement II : Restriction endonucleases cut the DNA strand a little away from the centre of the palindromic site.
In the light of the above statements, choose the most appropriate answer from the options given below :

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a

Both Statement I and Statement II are incorrect

b

Statement I is correct but Statement II is incorrect

c

Statement I is incorrect but Statement II is correct

d

Both Statement I and Statement II are correct

answer is D.

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Detailed Solution

Each restriction endonuclease recognises a specific palindromic nucleotide sequences in the DNA. Restriction enzymes cut the strand of DNA a little away from the centre of the palindrome sites, but between the same two bases on the opposite strands.

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Given below are two statements :Statement I : Restriction endonucleases recognise specific sequence to cut DNA known as palindromic nucleotide sequence.Statement II : Restriction endonucleases cut the DNA strand a little away from the centre of the palindromic site.In the light of the above statements, choose the most appropriate answer from the options given below :