Currently playing with some ideas for a project and needed some guidance. I am wondering, both in Drosophila melanogaster and in general, is the amount of heterochromatin a cell/nucleus can produce limited/consistent or variable?
Does one cell in a D. melanogaster produce a similar amount of heterochromatin as another cell in the same fly or another fly (assuming same conditions - environment etc.) or is the heterochromatin production quite variable? How is heterochromatin production regulated?