Why are there fewer tRNA anticodons than the 61 needed to match each mRNA codon that codes for an amino acid?
A. There is some flexibility in pairing between all 3 bases of the codon and all 3 bases of the anticodon.
B. There is some flexibility in pairing between the 5' base of the codon and the 3' base of the anticodon.
C. There is some flexibility in pairing between the middle base of the codon and the middle base of the anticodon.
D. There is some flexibility in pairing between the 3' base of the codon and the 5' base of the anticodon.
Answer: D
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