Proteins in Eukaryota Cells that DNA wrap around and form structural units called nucleosomes.
Histone Proteins
the state of chromatin that stains lightly, is partially uncoiled, and is typically active.
Euchromatin
the state of chromatin in which it is dark-staining, genetically inactive, and tightly coiled.
Heterochromatin
The addition of a methyl group to a cytosine residue on double-stranded DNA, a process which plays a major role in regulating gene expression and preventing the restriction of cutting DNA at their recognition sites.
Methylation
a molecule that increases the activity of an enzyme or a protein that increases the production of a gene product in DNA transcription.
Activators
are proteins involved in the process of converting, or transcribing, DNA into RNA.
Transcription factors
removes introns from a transcribed pre-mRNA, a type of primary transcript.
Spliceosomes
Any anabolic hormone used to promote muscle growth.
Steroids
Decomposition of a compound, especially complex substances such as polymers and proteins, by stages, exhibiting well-defined intermediate products.
Degradation time
escribes a reaction that introduces a functional acetyl group into a chemical compound.
Acetylation
RNA molecules inhibit gene expression or translation, by neutralizing targeted mRNA molecules.
RNAi
a compound found in living cells that plays a role in the degradation of defective and superfluous proteins.
Ubiquitin
degrade unneeded or damaged proteins by proteolysis, a chemical reaction that breaks peptide bonds.
Proteosome
a region of DNA that initiates transcription of a particular gene.
Promoter
a normally active site that can be turned on in necessary situations.
Inducible Operon
a normally inactive site that can be turned off in necessary situations.
Repressible Operon