Asked by Stephanie Pelaez on Jun 04, 2024
Verified
Which level of primary control in eukaryotic gene activity involves methylation and chromatin packing as a way to keep genes turned off?
A) pretranscriptional control
B) transcriptional control
C) posttranscriptional control
D) translational control
E) posttranslational control
Pretranscriptional Control
Regulatory mechanisms that act before the transcription process in gene expression to modulate the efficiency and rate at which genes are transcribed.
Methylation
A biochemical process that involves the addition of a methyl group to molecules like DNA, affecting their function and activity.
Chromatin Packing
The process of winding DNA around histone proteins to compact it into structural units known as nucleosomes, which further fold to form chromosomes.
- Understand the mechanisms of eukaryotic gene expression and control.
Verified Answer
DP
Dhruvi patelJun 08, 2024
Final Answer :
A
Explanation :
Pretranscriptional control involves modifications to the DNA structure, such as methylation and chromatin packing, which can prevent the binding of transcription factors and keep genes turned off. Transcriptional control involves regulating the initiation of transcription, posttranscriptional control involves regulating RNA processing and stability, translational control involves regulating protein synthesis, and posttranslational control involves regulating the activity and stability of proteins.
Learning Objectives
- Understand the mechanisms of eukaryotic gene expression and control.