Question

What is the minimum number of aminoacyl-tRNA synthetase enzymes needed to attach amino acids to all the various tRNA molecules?

1) 20
2) 61
3) 64
4) As many enzymes as there are different tRNAs are necessary.

Answer 1

The minimum number of aminoacyl-tRNA synthetase enzymes needed to attach amino acids to all the various tRNA molecules is 20.

Step-by-step explanation:

The minimum number of aminoacyl-tRNA synthetase enzymes needed to attach amino acids to all the various tRNA molecules is 20.

Each aminoacyl-tRNA synthetase is responsible for attaching a specific amino acid to its corresponding tRNA molecule. Since there are 20 amino acids, there must be at least 20 aminoacyl-tRNA synthetase enzymes to ensure that each amino acid is properly attached to its respective tRNA molecule.