Question

In any given species, there are at least how many types of aminoacyl tRNA synthetases?

20
40
100
200

Answer 1

20

Step-by-step explanation:

• Aminoacyl tRNA synthetases are the enzymes that are responsible for attaching the amino acid to the tRNA by carrying out the esterification reaction of attaching the cognate amino acid to its cognate tRNA to form aminoacyl-tRNA.
• Since there are twenty amino acids in the genetic code, there need to be at least twenty aminoacyl tRNA synthetases present in any given organism to carry out the reaction.