There are 45 different kinds tRNA (anticodons)available to serve as amino acid carriers,but there are 64 mRNA codons.Why aren't the tRNA anticodons and mRNA codons equal in number?
A)The reason is that the third base pair on the tRNA allows some flexibility (wobble);thus,some tRNA anticodons can recognize more than one mRNA codon.
B)The reason is that some tRNA anticodons can misread some of the mRNA codons,which creates a "wobble" in the tRNA anticodons that can be repaired by RNA repair enzymes.
C)The reason is that the third base pair on the mRNA codon allows some flexibility (wobble);thus,some tRNA anticodons can recognize more than one mRNA codon.
D)The reason is that the tRNA has the flexibility to choose which mRNA codons are necessary for building the polypeptide chain.

Question

Quizplus · Accepted Answer

The reason why there are fewer tRNA anticodons than mRNA codons is due to the phenomenon of wobble. The third base pair on the tRNA allows some flexibility, which means that some tRNA anticodons can recognize multiple mRNA codons. This allows for more efficient protein synthesis without the need for a separate tRNA molecule for every possible codon.

There Are 45 Different Kinds TRNA (Anticodons)available to Serve as Amino