MCQ
Which one of the following represents a palindromic sequence in $DNA$ ?
- ✓$5' - GAATTC - 3'$
$3' - CTTAAG - 5'$ - B$5' - CCAATG - 3'$
$3' - GAATCC - 5'$ - C$5' - CATTAG - 3'$
$3' - GATAAC - 5'$ - D$5' - GATACC - 3'$
$3' - CCTAAG - 5'$
✓
Answer
Correct option: A.
$5' - GAATTC - 3'$
$3' - CTTAAG - 5'$
$3' - CTTAAG - 5'$
a
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.
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 $EcoRI$.
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