Which of the following is true of the relationship between amino acids, tRNAs and aminoacyl-tRNA synthetases?
A) All amino acids have one tRNA and one aminoacyl-tRNA synthetase.
B) All amino acids have more than one tRNA and each tRNA has its own aminoacyl-tRNA synthetase.
C) Some amino acids have more than one tRNA, but these have only one aminoacyl-tRNA synthetase.
D) Some amino acids have more than one tRNA and each tRNA has its own aminoacyl-tRNA synthetase.
C
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