Tutor profile: Simon N.
What product is created by a combustion reaction involving a hydrocarbon?
1 CO2 and 2 H20
What is the function of DNA methylation and acetylation on the genome?
Methylation is often associated with repression of transcription performed by DNA methylases, whereas acetylation is associated with promoting transcription through adding acetyl groups to histones by histone acetylase.
Within the DNA there are many topographical features that function in unison to determine the likelihood of certain RNA to be transcribed. What are some of these landmarks and how do they work?
The promotor is often a cytosine-guanine rich area that binds to RNA polymerase and its associated proteins to begin transcription. Enhancers are either upstream of the promoter or within the gene, and recruit transcription binding proteins to aid in recruitment of RNA polymerase to the promoter. Silencers work oppositely of enhancers. Insulators are located between promoters and upstream enhancers to prevent binding of RNA polymerase to the promoter, and are often permanent and associated with developmental need of the protein.
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