Some metabolic pathways are regulated in part by changes in the rate of degradation of key enzymes.This is an example of
A) operon control.
B) transcriptional control.
C) posttranslational control.
D) genomic imprinting.
E) X inactivation.

Question

Quizplus · Accepted Answer

When the regulation of a metabolic pathway is affected by changes in the rate of degradation of key enzymes, it is considered posttranslational control. This means the regulation is occurring after the enzyme has been produced (translated), rather than at the level of transcription (transcriptional control) or the regulation of a group of genes (operon control). Genomic imprinting and X inactivation are unrelated processes.

Some Metabolic Pathways Are Regulated in Part by Changes in the Rate