In a typical nucleus, some regions of chromatin are stained light and others dark.
Explain why is it so and what is its significance? 3 mark
Light stained chromatin:
They are the regions of chromatin which are loosely packed during interphase and are called Euchromatin.
Euchromatin are transcriptionally active.
Dark stained chromatin:
They are the regions of chromatin which are densely packed during cell division and are called heterochromatin.
Heterochromatin are transcriptionally inactive.