I was recently thinking about the active vs the inactive part of the
transcriptome. I would be very interested to get an idea of the
percentage of genes that is actually actively transcribed at any stage
of development. I could make an educated guess and speculate that
maybe 60-70% of the genes are being transcribed (on average), but has
this been ever quantified?
Although error-prone, one approach may be to look at microarray data
and use certain intensity cutoffs. But again, these cutoffs are
I would greatly appreciate ideas from the community.
Thank you very much in advance,