Biotechnology- Principles and Processes Question 30
30. Which one of the following represents a palindromic sequence in DNA?
(a) 5’ - GAATTC - 3'
(b) 5’ - CCAATG - 3'
(c) 5’ - CATTAG - 3'
(d) 5’ - GATACC - 3'
Show Answer
Answer : a
Hints & Solutions
(a) A palindromic sequence is a nucleic acid sequence (DNA or RNA) that is the same whether read 5’ (five-prime) to $3^{\prime}$ (three prime) on one strand or $5^{\prime}$ to $3^{\prime}$ 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.
