Which of the following is a palindromic sequence?
A) 5′-AGGTCC-3′ 3′-TCCAGG-5′
B) 5′-CCTTCC-3′ 3′-GCAAGG-5′
C) 5′-GAATCC-3′ 3′-CTTAGG-5′
D) 5′-GGATCC-3′ 3′-CCTAGG-5′

Question

Quizplus · Accepted Answer

A palindromic sequence is a sequence of nucleotides that reads the same forward and backward, allowing for the complementary base pairing. In option D, 5′-GGATCC-3′ pairs with 3′-CCTAGG-5′, which reads the same in the opposite direction when accounting for base pairing rules (A with T, G with C), making it a palindromic sequence.

Which of the Following Is a Palindromic Sequence