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BIO334 CH1-4

Terms in this set (282)

DNAmt3
enzyme that looks for transposon genes to methylate
DnaMT1
maintains methylation on replicated DNA
5CG3
Pattern of methylation: ___' -____ ____ - ___' end
transposons
primary purpose of methylation is silence transcription of
transcribe
purpose of acetylation is to
histones
responsible for maintaining the chromatin's shape and structure
histone acetylation
occur at the amino terminal tails that protude from nucleosome
histone acetylation
plays key role in gene expression
epigenetics
hereditable modification of genes
histone deacetylation
removes acetyl groups from histone tails, causing the histones to wrap more tightly around the DNA and interfering with the transcription of genes by blocking access by transcription factors.
histone deacetylation
a global (non specific) reduction in gene expression
chromatin
is the combination of DNA and proteins that make up the contents of the nucleus of a cell.
nucleosome
a segment of DNA wound around a histone protein core ("beads on a string")
chromatin
Nucleosomes form the fundamental repeating units
histone
proteins found in eukaryotic cell nuclei that package and order the DNA into structural units called nucleosomes.
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