Question

difference between euchromatin and heterochromatin? any 5 points​

Answer 1

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Heterochromatin and euchromatin are two major categories of chromatin higher order structure. Heterochromatin has condensed chromatin structure and is inactive for transcription, while euchromatin has loose chromatin structure and active for transcription.

Answer 2

Ans‐ Difference Between Euchromatin And Heterochromatin

Heterochromatin is defined as the area of the chromosome which is darkly stained with a DNA specific stain and is in comparatively condensed form. Euchromatin is defined as the area of the chromosome which is rich in gene concentration and actively participates in the transcription process. It is found in the nucleus of eukaryotes as well as prokaryotes.

To help you understand how they differ from each other, we have given the difference between Euchromatin and Heterochromatin.

Also Read: What is VNTR

Euchromatin vs Heterochromatin

Following are the important difference between heterochromatin and euchromatin:

EuchromatinHeterochromatinFormA loosely packed form of DNAA tightly packed form of DNAHeteropycnosisDoes not exhibitExhibitsDNA densityLowHighFoundProkaryotes as well as eukaryotesEukaryotes onlyStateActiveInactiveReplicationEarly replicativeLate replicativeSticky/Non-stickyRegions are not stickySticky regionsPresenceInner body of the nucleusThe periphery of the nucleusActivityNo or little transcriptional activity

Participate in the transcriptional activity

What is Heterochromatin?

Heterochromatin are tightly packed form of DNA in the nucleus. They are so compactly organized that that are inaccessible to the protein involved in gene expression. Even the crossing over cannot take place. These are of two types – facultative heterochromatin and constitutive heterochromatin.

What is Euchromatin?

These are loosely packed form of chromatin. These are active during transcription. It contains 90% of the entire human genome. Housekeeping genes are one of the forms of euchromatin.

These were some of the important difference between Euchromatin and Heterochromatin.