In which of the following sets of nucleic acid "building blocks" are all members of the set possible components of a DNA molecule?

Question

Quizplus · Accepted Answer

DNA is composed of a phosphate group, a sugar (2-deoxyribose), and four types of nitrogenous bases (adenine, thymine, cytosine, and guanine). None of the options provided contain a correct and complete set of components for DNA. Option A includes ribose, which is the sugar in RNA, not DNA. Option B includes both ribose (incorrect for DNA) and 2-deoxyribose (correct for DNA), but it does not form a complete set of components for DNA. Option C includes uracil, which is found in RNA, not DNA.

In Which of the Following Sets of Nucleic Acid "Building