Nucleic acids are composed of:
A. A phosphate group, a pentose sugar, a carboxylic acid
B. A nitrogen base, an amino group, a carboxylic acid
C. A pentose sugar, a nitrogen base, an R group
D. A phosphate group, a pentose sugar, a nitrogen base

Respuesta :

Each nucleotide is composed of three parts: a 5-carbon sugar, a phosphate group, and a nitrogenous base. 

Answer:

D

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