Unit 3-Molecular Genetics Lesson 5 22.0

Question 1

What occurs in the elongation phase of transition?

Answer 1

Ribosome catalyses dehydration synthesis reaction between amino acids in P site and A site forming a peptide bond between amino acids.

Question 2

In elongation phase of transition: a growing polypeptide now attaches to what?

Answer 2

to tRNA in A site

Question 3

In elongation phase of transition: how does the ribosome move?

Answer 3

forward one codon

Question 4

In elongation phase of transition: where does the free tRNA in P site exit?

Answer 4

out the back of ribosome (out of E site)

Question 5

In elongation phase of transition: where does the tRNA (with polypeptide) move?

Answer 5

Into the P site