Final answer:
Different tRNAs that accept the same amino acid are referred to as isoaccepting tRNAs (option b). These tRNAs may have differing anticodons but carry the same amino acid, getting charged by the same aminoacyl tRNA synthetase reflecting the redundancy of the genetic code.
Step-by-step explanation:
The different tRNAs that accept the same amino acid are referred to as isoaccepting tRNAs. This term describes multiple tRNA molecules that have different anticodons but are all capable of carrying the same amino acid. The aminoacyl tRNA synthetases are crucial enzymes in the process of protein synthesis, since they are responsible for attaching each amino acid to its corresponding tRNA, a process known as tRNA charging. Each tRNA has a specific anticodon that is complementary to a codon on mRNA, ensuring that the correct amino acid is added to the growing polypeptide chain as directed by the genetic code.
For example, even though different tRNAs may have different anticodons matching to various codons that all code for the same amino acid, they would all be charged with that amino acid by the same aminoacyl tRNA synthetase. This is how the cell accommodates the redundancy of the genetic code, where multiple codons can specify a single amino acid.
Hence, the answer is option b.