Question

1. choose the best answer.

what shape does dna have?
○ spherical
○ double helix
○ single helix
○ double diamond

1. choose all that apply.

what three parts make up dna?
□ phosphate group
□ fatty acids
□ glycerol
□ sugar
□ nitrogenous bases
□ potassium group

1. choose the best answer.

Explanation:

Question 3

DNA's structure is known to be a double helix, where two strands wind around each other. Spherical is not related, single helix is incorrect for DNA, and double diamond is not a DNA structure term.

DNA is made of a phosphate group, a sugar (deoxyribose), and nitrogenous bases. Fatty acids and glycerol are part of lipids, and potassium group is not a DNA component.

Answer:

B. double helix

Question 4