Regulatory fine-tuning frequently occurs at the level of translation by:
1)Modulation of the rate of polypeptide chain initiation
2)Modulation of the rate of chain elongation
3)Modulation of the amino acid sequence
A) 1
B) 2
C) 3
D) 1 and 2
E) All of these are correct.

Question

Quizplus · Accepted Answer

Regulatory fine-tuning can occur through modulation of the rate of polypeptide chain initiation and the rate of chain elongation. However, modulation of the amino acid sequence would result in a different protein with different functionalities and is not a mechanism for regulatory fine-tuning. Therefore, the best choice is D, which includes the correct mechanisms of regulatory fine-tuning.

Regulatory Fine-Tuning Frequently Occurs at the Level of Translation By