Which one of the following palindromic base sequences in DNA can be easily cut at about the middle by some particular restriction enzyme? - Biology MCQ Biology | ExamTest.live | ExamTest.live

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Which one of the following palindromic base sequences in DNA can be easily cut at about the middle by some particular restriction enzyme?

A $5^{'} CACGTA 3^{'}; 3^{'} CTCAGT 5^{'}$
B $5^{'} CGTTCG 3^{'}; 3^{'} ATGGTA 5^{'}$
C $5^{'} GATATG 3^{'}; 3^{'} CTACTA 5^{'}$
D $5^{'} GAATTC 3^{'}; 3^{'} CTTAAG 5^{'}$

Solution & Step-by-step Explanation

A palindromic sequence in DNA is a sequence of base pairs that reads the same on both strands in the 5^{'} \to 3^{'} direction.Option D:Strand 1: 5^{'} GAATTC 3^{'} Strand 2: 3^{'} CTTAAG 5^{'} \to 5^{'} GAATTC 3^{'} This is the specific recognition sequence for the restriction enzyme EcoRI.

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Which one of the following palindromic base sequences in DNA can be easily cut at about the middle by some particular restriction enzyme?

A

5^{'} CACGTA 3^{'}; 3^{'} CTCAGT 5^{'}

B

5^{'} CGTTCG 3^{'}; 3^{'} ATGGTA 5^{'}

C

5^{'} GATATG 3^{'}; 3^{'} CTACTA 5^{'}

D

5^{'} GAATTC 3^{'}; 3^{'} CTTAAG 5^{'}

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