1. Describe what effects epigenetic modifications such as methylation and acetylation can have in eukaryotic cells, and how these modifications are added or removed from chromatin.
2. The human genome project has revealed that the majority of the genome is 'junk'.
a) Describe the ways in which a genome can be sequenced
b) A significant proportion of the 'junk' DNA in the human genome is transcribed into RNA. Using specific examples describe whether this non-coding RNA plays a biological function.