SSC MTS EXAM

Detailed explanation-1: -A nucleotide is the basic building block of nucleic acids (RNA and DNA). A nucleotide consists of a sugar molecule (either ribose in RNA or deoxyribose in DNA) attached to a phosphate group and a nitrogen-containing base. The bases used in DNA are adenine (A), cytosine (C), guanine (G) and thymine (T).

Detailed explanation-2: -The building blocks of proteins are amino acids. Nucleotides consisting of sugar deoxyribose, one phosphate group, and one of four nitrogen bases are building blocks of DNA; adenine (A), guanine (G), cytosine (C), and thymine (T).

Detailed explanation-3: -The phosphate group of one nucleotide and the pentose sugar of the next nucleotide form a covalent bond, which binds the monomers together. This phosphodiester linkage forms the sugar-phosphate backbone of the nucleic acids.

Detailed explanation-4: -The monomers of DNA are called nucleotides. Nucleotides have three components: a base, a sugar (deoxyribose) and a phosphate residue. The four bases are adenine (A), cytosine (C), guanine (G) and thymine (T). The sugar and phosphate create a backbone down either side of the double helix.