Question

A model of DNA is shown.

Structure 1
MMM
Which label identifies a hydrogen bond?
A. Structure 1
B. Structure 2
C. Structure 3
Structure 4
D. Structure 4
Structure 2
3
5%
Structure 3
K

Answer 1

The label that identifies a hydrogen bond is Structure 3.

Step-by-step explanation:

The label that identifies a hydrogen bond in the model of DNA shown is Structure 3.

Hydrogen bonds are the weak chemical bonds that connect the complementary nitrogenous bases of the DNA double helix. In the model, the dotted lines between Thymine and Adenine and between Guanine and Cytosine represent these hydrogen bonds.