Question
Write differences between Heterochromatin and Euchromatin.

Answer

S.No.HeterochromatinEuchromatin
1.The replication of their DNA may be delayed during interphase.The DNA found in these gets replicated first.
2.These are deeply stained.These are lightly stained.
3.They are genetically inactive.These are genetically active.
4.These are more condensed and coiled.These are less condensed and coiled.
5.pH, temperature, hormones, poisons etc. have little effect on it.It has a special effect on pH, temperature, hormones, poisons etc.
6.It is of condensed nature.Whereas it is of diffused nature.
7.It is granular in nature and has a thickness of 250 A or more.It is a narrow fibrous material of 30-80 Å thickness.
8.It presence inhibits crossing over.This shows normal crossing over.

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