epigenetic control of gene expression Flashcards
1
Q
in eukaryotes what does epigenetic control determine
A
whether a gene is switched on or off
2
Q
how does epigenetic control work
A
the attachment or removal of chemical groups to or from DNA or histone proteins
3
Q
what don’t epigenetic marks do
A
alter the base sequence of DNA
4
Q
what do epigenetic marks do
A
they alter how easy it is for the enzymes and other proteins needed for transcription to interact with and transcribe the DNA
5
Q
what do organisms inherit their DNA base sequence from
A
their parents
6
Q
what happens between generations of epigenetic marks on DNA
A
they are removed however some escape the removal process and are passed onto offspring
