Which of the following sequences is most likely to be cut by a restriction enzyme?
A) 5′-AATTCT 3′ 3′-TTAAGA-5′
B) 5′-AATATT-3′ 3′-TTATAA-5′
C) 5′-AAAATT-3′ 3′-TTTTAA-5′
D) 5′-ACTACT-3′ 3′-TGATGA-5′

Question

Quizplus · Accepted Answer

Restriction enzymes typically recognize palindromic sequences, which read the same forward and backward on complementary strands. Sequence B (5′-AATATT-3′ / 3′-TTATAA-5′) is a palindromic sequence.

Which of the Following Sequences Is Most Likely to Be