AIPMT PRELIMS 2010 Zoology DNA Sequencing MCQ Question
Which one of the following palindromic base sequences in DNA can be easily cut at about the middle by some particular restriction enzyme?
5’ CACGTA 3’; 3’ CTCAGT 5’
5’ CGTTCG 3’; 3’ ATGTCG 5’
5’ GATATG 3’; 3’ CTCACT 5’
5’ GAATTC 3’; 3’ CTTAAG 5’
Correct Answer
Detailed Explanation
In DNA, a palindromic sequence is a sequence of base pairs which would read the same, provided that the orientation of reading is kept the same. Example: 5’ GAATTC 3’ and 3’ CTTAAG 5’.
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