BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Codon is a sequence of three nucleotides, which together form a unit of genetic code in a DNA or RNA molecule. Each nucleotide contains one nitrogen base. So, there are 3 nitrogen bases present in each nucleotide.

Detailed explanation-2: -A codon is a sequence of four nitrogenous bases.

Detailed explanation-3: -However, a triplet code produces 64 (43 = 64) possible combinations, or codons.

Detailed explanation-4: -There are 3 STOP codons in the genetic code-UAG, UAA, and UGA. These codons signal the end of the polypeptide chain during translation. These codons are also known as nonsense codons or termination codons as they do not code for an amino acid.

Detailed explanation-5: -One amino acid is coded using six nitrogen bases. So the codon codes for the amino acid, requiring a total of six nitrogen bases.