MDCAT Biology MCQ #1194

A scientist uses a restriction enzyme that cuts DNA at a palindrome sequence. What is unusual about the cut ends?

MDCAT Biology MCQ #1194

  1. Question 1

    Q1. A scientist uses a restriction enzyme that cuts DNA at a palindrome sequence. What is unusual about the cut ends?

    • A) They are phosphorylated
    • B) They are blunt
    • C) They are sticky with 5' overhangs
    • D) They are complementary and can reanneal

    Answer: They are complementary and can reanneal

    Explanation: Sticky ends are complementary and can reanneal; Not all palindromic cuts produce sticky ends, some are blunt.