Cells that use the amino acids selenocysteine and pyrrolysine have

A) two more codons compared to other cells.
B) two more tRNAs compared to other cells.
C) two more aminoacyl-tRNA synthetases compared to other cells.
D) two more tRNAs and aminoacyl-tRNA syntheses compared to other cells.
E) inosine at the third position of their tRNA anticodons to accommodate these amino acids.


Answer: D

Biology & Microbiology

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