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NEET2010ZoologyBiotechnology - Principles and ProcessesActual

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

Options

  1. A5^ - CGTTCG -3^ 3'-ATGGTA-5'
  2. B5'-GATATG-3' 3'-CTACTA-5
  3. C5^ - GAATTC -3^ 3^ - CTTAAG -5^
  4. D5'-CACGTA-3' 3^ - CTCAGT -5^

Correct answer

C. 5^ - GAATTC -3^ 3^ - CTTAAG -5^

Step-by-step solution

The palindromic base sequence is a sequence in double-stranded nucleic acids that reads the same on both strands when reading one strand from left to right and the other from right to left (ie, both strands are read 5^ 3 ). Out of the given options aligned & 5^ - GAATTC-3 & 3 -CTTAAG-5 aligned is a palindromic sequence that can be cut at about the middle by particular restriction enzyme.

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