| 1. | Unique triplets promoted the binding of specific tRNAs to the ribosome.
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| 2. | Certain organisms can have one or more aminoacyl tRNA synthetases missing.
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| 3. | They have separately evolved in both bacteria and eukaryotes from tRNAs.
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| 4. | This enzyme participates in cysteine metabolism and aminoacyl-trna biosynthesis.
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| 5. | This enzyme participates in glutamate metabolism and aminoacyl-trna biosynthesis.
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| 6. | This enzyme participates in tryptophan metabolism and aminoacyl-trna biosynthesis.
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| 7. | The synthetase is also modified to recognize only the orthogonal tRNA.
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| 8. | Eukaryotic genes containing consistent Met-tRNA with the mismatch codon.
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| 9. | Within the genome are 64 tRNA, and three rRNA genes.
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| 10. | There are 41 microRNA, 348 tRNA and 2017 rRNA genes.
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