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LaoChromatin-remodeling complexes recognize genes they should act on through specific DNA sequences, histone modifications, and transcription factors that can recruit them to the appropriate loci. These complexes contain subunits that read these signals and help guide them to the correct genes for regulation. Additionally, interactions with other proteins and regulatory factors in the cell also play a role in directing their activity.
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What do prokaryotic and eukaryotic cells use to turn certain genes on or off?
Prokaryotic cells use regulatory proteins like repressors or activators that bind to the DNA to turn genes on or off. Eukaryotic cells use a combination of transcription factors, chromatin remodeling complexes, and non-coding RNAs to regulate gene expression.
Why genes cannot be described?
Genes are specific sequences of DNA that encode the instructions for making proteins. Their functions are complex and influenced by various factors, making them difficult to fully describe in simple terms. Additionally, genes can interact with one another and the environment, leading to diverse outcomes and behaviors.
When this is on the operator the genes are off?
When a mutation is on the operator a gene can die which leads to an evolution of the entire genetic makeup. Also when lactose is absent and the genes should be switched off.
How can steroid hormones initiate cell signaling?
Steroid hormones diffuse through the plasma membrane and bind to intracellular receptors, forming hormone-receptor complexes. These complexes then translocate to the nucleus and regulate gene expression by binding to specific DNA sequences, thereby initiating cell signaling. This process leads to the activation or inhibition of target genes, ultimately influencing cellular responses.
Are chromosomes genes or are genes chromosomes?
Genes are stretches of DNA that contain code to make proteins. Chromosomes are made up of numerous Genes.
