Number of t-RNA present in cells is: (A) 23, (B) 25, (C) 28, (D) 30
Answer is A. The number of tRNAs in most cells is more than the number of amino acids used in protein synthesis (20) and also differs from the number of amino acid codons in the genetic code (61)Ref: DM Vasudevan, 7th edition, page no: 596, 597