2 codon release factor 3 mRNA small snRNA A medium tRNA E nitrogenous base termi

ID: 9304 • Letter: 2

Question

codon

release factor

mRNA

small snRNA

medium

tRNA

nitrogenous base

terminator

polynucleotide chain

Translocation

amino acid

polypeptide chain

anticodon

rRNA

1. A small ribosomal subunit binds to a molecule of ______ near its 5'end.

2. A charged ______ molecule with a UAC anticodon binds to the first AUG codon in the mRNA strand.

3. A large ribosomal subunit associates with the _______ ribosomal subunit.

4. A charged tRNA with the ______ that is complementary to the codon in the A site enters and binds to the A site.

5. A peptide bond forms between the amino acid attached to the tRNA in the A site and the growing polypeptide chain attached to the tRNA in the _______ site.

6. The ribosome moves along the mRNA so that the tRNA that was in the ________ site is now in the P site and the tRNA that was in the P site is now in the E site. The movement of the ribosome is called ________.

7. The tRNA in the ________site is ejected.

8. When the ribosome encounters a stop codon, a _______binds to the A site.

9. The release factor breaks the covalent bond that links the newly synthesized _________ to the tRNA in the P site.

10. The mRNA, tRNA, and _______ ribosomal subunits dissociate from each other.