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24/09/2020 1:14 pm
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Which one of the following represents a palindromic sequence in DNA?
(a) 5' - GAATTC - 3'
3' - CTTAAG - 5'
(b) 5' - CCAATG - 3'
3' - GAATCC - 5'
(c) 5' - CATTAG - 3'
3' - GATAAC - 5'
(d) 5' - GATACC - 3'
3' - CCTAAG - 5'
1 Answer
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24/09/2020 1:16 pm
(a) 5' - GAATTC - 3'
3' - CTTAAG - 5'
Explanation:
A palindromic sequence is a nucleic acid sequence (DNA or RNA) that is the same whether read 5' (five-prime) to 3' (three prime) on one strand or 5' to 3' on the complementary strand with which it forms a double helix.
5 - GAATTC - 3
3 - CTTAAG - 5
It is a palindromic sequence of DNA cut by restriction enzyme EcoRI.