Question

Which of the following are methods employed by cells to control gene expression? (hint: select all options that apply) Multiple answers: You can select more than one option O A Chromatin remodeling B Histone acetylation O c DNA methylation

Answer 1

ANSWER : All options are correct (all of them regulates the gene expression in eukaryotes)

​(​​rate if answer is helpful thanks)

In chromatin remodeling the tight or loose packaging of the genes in chromatin can control whether the genes can be expressed to form their encoded product.

EUKARYOTIC GENE EXPRESON Chromatin structure Degradation Translation I Transcription I Processing mRNA Processing Active Nucleus & Co.Se protein Scanned with CamScanner cs Scanned with CamScanner

Histone acetylation and deacetylation are important processes in regulating gene expression, making the genes more available or less available for transcription. Histone deacetylase (HDAC) enzymes collapse the DNA around histones and reduce gene transcription

Modifying gene activity Nucleosome Inaccessible. Histones inactive gene DNA Closed chromatin Acetyl group Histona tail Histono acolyfotion and other modifications Other modifications Opon chromatin Accessible, active gene Transcriptional machinery Scanned with CamScanner cs Scanned with CamScanner

DNA methylation regulates gene expression by recruiting proteins involved in gene repression or by inhibiting the binding of transcription factor(s) to DNA. During development, the pattern of DNA methylation in the genome changes as a result of a dynamic process involving both de novo DNA methylation and demethylation.

Transcription Factors > Gene transcription QQ Promoter Gene Transcription Factors No transcription Methylated CpG Unmethylated CpG Promoter Gene Scanned with CamScanner cs Scanned with CamScanner