Question

Adenine to thymine has how many H-bonds?
1) 1
2) 2
3) 3
4) 4

Answer 1

Adenine to thymine forms two hydrogen bonds, which ensure the specific complementary base pairing necessary for the stable structure of the DNA double helix.

Step-by-step explanation:

Adenine (A) forms two hydrogen bonds with thymine (T), and this is crucial for the stability and structure of DNA. These bonds are responsible for the specific pairing between the nucleotides which is essential for the double helix structure of DNA. Complementary base pairing is a fundamental concept in biology, maintaining the uniform shape of the DNA double helix.