Which of the following is a palindromic recognition sequence?
A) 5´. . . CAATAG . . . 3´
B) 5´. . . CAATTG . . . 3´
C) 5´. . . CATTTG . . . 3´
D) 5´. . . GATTTC . . . 3´
E) 5´. . . CATCAT . . . 3´

Question

Quizplus · Accepted Answer

A palindromic recognition sequence reads the same forwards and backwards on complementary strands. 5´. . . CAATTG . . . 3´ is palindromic because its complementary strand is 3´. . . GTTAAC . . . 5´, which reads the same in the reverse direction.

Which of the Following Is a Palindromic Recognition Sequence