Suppose you take the glycine tRNA and modify it so that the glycine is changed to valine.Based on the results of the Benzer experiments, _______, because the protein synthesis machinery recognizes the _______.
A) nothing should change in proteins; amino acid attached to the tRNA
B) nothing should change in proteins; tRNA anticodon
C) proteins would have valines where glycines normally are; amino acid attached to the tRNA
D) proteins would have valines where glycines normally are; tRNA anticodon
E) proteins would have glycines where valines normally are; amino acid attached to the tRNA

Question

Quizplus · Accepted Answer

The Benzer experiments showed that changes in the tRNA anticodon can lead to changes in the amino acid that is incorporated into a protein. Therefore, if the glycine tRNA is modified to have a valine anticodon, the protein synthesis machinery will incorporate valines instead of glycines into proteins. The modification does not affect the amino acid attached to the tRNA (which is still glycine).

Suppose You Take the Glycine TRNA and Modify It So