D2.2 Gene expression

Genome

all the genes in your body

Transcriptesome

all of the RNA in your cells

Proteasome

All the proteins in your body

Gene Expression

Each cell contains the same genes in your body. The difference in each cell is which genes are and aren’t expressed

Euchromatin

loose, easy to access, expressed

Heterochromatin

tightly packed, hard to access, not expressed

Methylation

Methyl group are added to regulate chromatin and gene expression, when CH3 is added to the promoter of the gene “turning it off” (HDAC)

Actylelation

messes with the + charge, when OC2H3 is added loosening packing of histones, turning on proteins (HAT)

Epigenesis

is the concept that a multicellular organism develops from undifferentiated cells. Differentiated cells is achieved by activating and silencing genes.

Epigenetic tags

chemical changes to the DNA and the proteins associated with it

Phenotype

observable characteristics