Question

In an experiment you stall the ribosome with low Mg^2+ concentration. Which of the following will then cause the release of the Peptide from the ribosome?

(a) Increasing the Mg^2+ concentration

(b) Adding Urea

(c) Adding pyromycin

(d) Adding Varomycin

I had been asked this question in a national level competition.

I'm obligated to ask this question of Ribosome as Ribozyme topic in portion Gene Expression : Translation of Cytogenetics

Answer 1

Right choice is (c) Adding pyromycin

To elaborate: Pyromycin will cause the release of peptide with pyromycin at the C terminus. On the other hand urea will simply degrade the pepide.