A codon consists of:: (A) One molecule of aminoacyl-tRNA, (B) Two complementary base pairs, (C) Three consecutive nucleotide units, (D) Four individual nucleotides
Answer is C. Ans. C. Three consecutive nucleotide units(Ref: Harper 31/e page 399)Each codon consists of a sequence of three nucleotides, i.e. it is a triplet code.