The correct option is A
(iii); (B) →
(i); (C) →
(iv); (D) →
(A) Nucleoside → Sugar + base (iii)
A nucleoside consists simply of a nucleobase (nitrogenous base) and a five-carbon sugar.
(B) Nucleotide → Sugar + base + phosphate group (i)
Nucleotides are composed of three subunit molecules: a nitrogenous base, a five-carbon sugar, and at least one phosphate group.
(C) DNA → Cytosine + thymine (iv)
The information in DNA is stored as a code made up of four chemical bases: adenine (A), guanine (G), cytosine (C), and thymine (T).
(D) RNA → Cytosine + uracil (ii)
Cellular organisms use messenger RNA (mRNA) to convey genetic information using the nitrogenous bases of guanine (G), uracil (U), adenine (A), and cytosine (C).