Which answer choice below correctly describes the structure of DNA?(1 point)
Responses
A sugar-phosphate backbone with nitrogen bases in the middle forming a double helix.
A sugar-phosphate backbone with nitrogen bases in the middle forming a double helix.
Sugar-phosphate backbone with nitrogen bases coming off a single helix.
Sugar-phosphate backbone with nitrogen bases coming off a single helix.
Nitrogen bases on the outside with sugar-phosphate in the middle of a double helix.
Nitrogen bases on the outside with sugar-phosphate in the middle of a double helix.
Sugar-nitrogen base backbone with phosphates in the middle forming a double helix.
1 answer
The correct answer choice that describes the structure of DNA is:
A sugar-phosphate backbone with nitrogen bases in the middle forming a double helix.
This accurately describes the classic structure of DNA, where the sugar and phosphate groups form the backbone, and the nitrogenous bases (adenine, thymine, cytosine, and guanine) pair and are positioned in the center of the double helix.
