AAMC Practice Test 3 B/B #38

[xoxo111]

Could someone please explain this answer?

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[Matthew9Thirtyfive]

View attachment 239068

Could someone please explain this answer?

Hif binds to a CCCCGGGC sequence. Restriction enzymes bind to palindromic sequences. So a four base pair sequence would be CCGG and a six base pair sequence would be CCCGGG, both of which are palindromic (ie, the complementary strand is the same when you read it 5’-3’).

If you take an eight base pair sequence, it’s no longer a palindrome.