Genes, Chromosomes, and DNA Quick Check 4 of 54 of 5 Items Question Which answer choice below correctly describes the structure of DNA?(1 point) Responses 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. Sugar-nitrogen base backbone with phosphates in the middle forming a double helix. 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. Skip to navigation page 12 of 12
1 answer
The correct answer that describes the structure of DNA is: A sugar-phosphate backbone with nitrogen bases in the middle forming a double helix.
This describes the classic structure of DNA, where the sugar and phosphate molecules form the outer "backbone" of the helix, and the nitrogenous bases pair in the middle to form the rungs of the ladder-like structure.
