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:

• DNA nucleotides consist of deoxyribose (a 5 - carbon sugar), a phosphate group, and one of the four nitrogenous bases: adenine (A), thymine (T), cytosine (C), or guanine (G).
• RNA nucleotides have ribose (a 5 - carbon sugar), a phosphate group, and one of the four nitrogenous bases: adenine (A), uracil (U), cytosine (C), or guanine (G).

Answer:

deoxyribose + phosphate group + thymine