Question

What is the correct order for the following list of steps for initiating translation?

a)Binding initiator tRNA to mRNA
b)Binding of large ribosomal subunit to mRNA
c)Binding of small ribosomal subunit to mRNA
d)Binding of a 2nd tRNA with its amino acid to the A site
e)Formation of covalent bond between methionine and second amino acid

Answer 1

The correct order for initiating translation includes the binding of the small ribosomal subunit to mRNA, scanning for the start codon, binding of the initiator tRNA, binding of the large ribosomal subunit, and the formation of a covalent bond between amino acids.

Step-by-step explanation:

The correct order for the steps in initiating translation is as follows:

1. Binding of the small ribosomal subunit to mRNA
2. Scanning along the mRNA until the start codon is identified
3. Binding of the initiator tRNA to the start codon
4. Binding of the large ribosomal subunit to the mRNA
5. Formation of a covalent bond between the methionine carried by the initiator tRNA and the second amino acid