Question

Nucleic acids are composed of:

O A. A phosphate group, a pentose sugar, a carboxylic acid
.
O B. A pentose sugar, a nitrogen base, an R group
.
O C. A nitrogen base, an amino group, a carboxylic acid
.
O D. A phosphate group, a pentose sugar, a nitrogen base

Answer 1

D. Nucleic acids (RNA and DNA) are composed of a phosphate group , a pentose sugar (5 carbon sugar) and a nitrogen base (A,T,C,G).