Question

which of the following could be a nucleotide of dna? deoxyribose + phosphate group + thymine deoxyribose + phosphate group + uracil ribose + phosphate group + thymine ribose + phosphate group + uracil

Explanation:

A DNA nucleotide consists of deoxyribose (sugar), a phosphate group, and one of the nitrogenous bases: adenine, thymine, cytosine, or guanine. Uracil is a base in RNA, not DNA. Ribose is the sugar in RNA nucleotides. So the correct option must have deoxyribose, phosphate, and a DNA - specific base (thymine here).

Answer:

A. deoxyribose + phosphate group + thymine