Which of the following statements is true for DNA?
A)Cytosine and guanine are a complementary base pair that form 2 hydrogen bonds.
B)Cytosine and uracil are a complementary base pair that form 3 hydrogen bonds.
C)Thymine and uracil are a complementary base pair that form 3 hydrogen bonds.
D)Thymine and adenine are a complementary base pair that form 2 hydrogen bonds.
E)Thymine and guanine are a complementary base pair that form 3 hydrogen bonds.

Question

Quizplus · Accepted Answer

Thymine and adenine are a complementary base pair that form 2 hydrogen bonds. This is a fundamental concept in DNA base pairing, with adenine always pairing with thymine and cytosine always pairing with guanine. Uracil only appears in RNA, where it pairs with adenine and also forms 2 hydrogen bonds.

Which of the Following Statements Is True for DNA