the genetic code is a triplet code, and a permutation of the four bases (4³) generates a total of 64 codons . Out of these 64 codons, 61 codons code for amino acids, while the remaining 3 codons (UAA, UAG, and UGA) do not code for any amino acids and instead function as stop or terminator codons , . This fundamental principle of molecular biology is a key concept for medical entrance exams, as NCERT textbooks serve as the primary source for approximately 95% of NEET Biology questions .