Question

a nucleotide of dna may contain adenine, guanine, cytosine, or thymine. what is each of these components?

a. 5 - carbon sugar

b. nitrogenous base

c. phosphate group

d. nucleic acid

Explanation:

DNA nucleotides are made of three parts: a 5-carbon sugar (deoxyribose), a phosphate group, and a nitrogenous base. Adenine, guanine, cytosine, and thymine are the four nitrogen-containing bases that form the genetic code in DNA.

Answer:

B. nitrogenous base