Question

Describe what each level of regulation controls:

A) Transcriptional, post-transcriptional, translational, post-translational
B) Translational, post-transcriptional, transcriptional, post-translational
C) Post-transcriptional, transcriptional, post-translational, translational
D) Transcriptional, translational, post-translational, post-transcriptional

Answer 1

Gene expression is regulated at multiple levels in the cell. Transcriptional regulation controls transcription, while post-transcriptional regulation, translational regulation, and post-translational regulation occur at later stages of gene expression.

Step-by-step explanation:

Gene expression is regulated at many levels in the cell. Transcriptional regulation controls the initiation and rate of transcription, which is the first step in gene expression. Post-transcriptional regulation occurs after transcription and can involve processing, transport, and binding of mRNA. Translational regulation controls the synthesis of proteins from mRNA. Post-translational regulation occurs after translation and involves modifications of proteins that can affect their activity or stability.