which-of-the-following-best-describes-the-components-that-alternate-to-form-the-

Question

Which of the following best describes the components that alternate to form the backbone of a DNA molecule?

Accepted Answer

Alternating sequence of phosphate groups and deoxyribose sugars

Answer

Alternating sequence of amino acids and peptide bonds

Answer

Alternating sequence of nitrogenous bases and hydrogen bonds

Answer

Alternating units of fatty acids and ester bonds