Wobbling helps to maintain economy in number of tRNA molecules because (1)Genetic code is unambiguous and specific (2) tRNA contains anticodons (3)-First two bases in the codon are specific (4)Genetic message is read in open frame 62The codons causing chain termination are (1)AGT,TAG,UGA KZ) UAG, UGA,UAA (3)TAG,TAA,TGA
Answers
Answer:
tRNA contains anticodons
Explanation:
64 codons code for 20 amino acid and each amino acid has one related tRNA molecule that codes for amino acid and carries the anticodon for the corresponding codons. According to Wobble hypothesis, the 3rd base in an mRNA codon forms a non-Watson-Crick base pairing with the first base of the tRNA anti-codon. The first two bases of the mRNA can pair only by means of complementary hydrogen bonding (Watson-Crick base pairing). However, the 3rd codon has non-Watson Crick base pairing, which allows it to bind to more than one base. Due to this, a single tRNA can bind to more than one codon and thereby code for the same amino acid. This is very helpful as 64 codons need to code only for the 20 amino acids present. Thus, the wobbling hypothesis helps to maintain the economy in a number of RNA molecules.