Euchromatin and hetero chromatin - structure and difference

Heterochromatin and euchromatin - this lecture explains about Euchromatin and heterochromatin properties and functions. It will also help you to understand the difference between heterochromatin and euchromatin. Heterochromatin is a tightly packed type of DNA, which comes in multiple sorts. These types lie on a continuum between the 2 extremes of constitutive and facultative heterochromatin. Both play a position in the expression of genes.
Constitutive heterochromatin can have an impact on the genes close them (function-outcomes variegation). It's quite often repetitive and varieties structural functions akin to centromeres or telomeres, furthermore to acting as an attractor for other gene-expression or repression indicators.
Facultative heterochromatin is the outcome of genes which can be silenced through a mechanism comparable to histone deacetylation or piRNA via RNAi. It isn't repetitive and shares the compact constitution of constitutive heterochromatin. Nonetheless, underneath targeted developmental or environmental signaling cues, it may well lose its condensed structure and end up transcriptionally energetic.
Heterochromatin has been associated with the di and tri-methylation of H3K9 in distinctive portions of the genome.
Euchromatin is a frivolously packed type of chromatin (DNA, RNA and protein) that is rich in gene awareness, and is most commonly (however no longer always) underneath energetic transcription. Euchromatin comprises probably the most lively component of the genome within the mobilephone nucleus. 92% of the human genome is euchromatic. The the rest is known as heterochromatin.
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[@AmanSaharan]

Histone octamer + Dna -----> nucleosome.
Neclosomes +Linker Dna (H1 histone )'s -----> chromatin .
NHC Protein + Chromatin ----> 1 . Euchromatin .
2. Heterochromatin.
Nucleosome in chromatin Condenses in Chromatin fiber .
Chromatin along with chromatin fiber further Condenses as chromosomes At Metaphase .

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[@manvendrapratap6350]

Sir but packing is based on the stage of cell division "heterochromatin" is densely packed at interphase and prophase while euchromatin during metaphase.

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Thank you so much sir...this is very helpful to study ...can you please explain about "Micro RNA and Noncoding RNA
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[@randomentertainment1390]

thank you for the video! can you please give me an example of euchromatin and heterochromatin, in skin cells before and after a sun burn

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Linkage map of Drosophila and maize

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Sir pls clear me one thing that how facultative hetero chromatin form Barr body?

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[@ricui8394]

Is that euchromatin presents in both eukaryotic and prokaryotic cells while heterochromatin presents in prokaryotic cells only?

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Sir please make video on YEAST Heterochromatin.

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Can u share structure of heterochromatic

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Sir why is Euchromatin transcriptionally active and heterochromatin inactive?

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How is heterochromatin present in chromatin , it is more densely packed but what does this mean , more than 200bp in nucleosome.?

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Nyc interpretation...

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Actually on which terminal modification of histone happens N or C ...some time Sir say it as N and other cases u say it as N

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Please make a video on Nucleosome model

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Does intercary heterochromatin means Euchromatin?

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thanks a lot... explained really well

[@beautyofquettabalochistan1304]

sir heterochromatin does not get replication? if get how? please sir this is my confusion

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[@shomusbiologyofficial]

I don't understand your language

[@ammarahmehak9986]

Nice but improvements required
You did mistake in some places
Plz explain it

[@filmonhaile3327]

Can you name the mistakes please?

[@gsbioclasses1234]

Chromosomes are heterochromatins?

[@mrscientific4826]

NYC sir but,, need more information

[@sonalighosh1234]

facultative and constitutive chromatin...concept is wrong...pls correct it

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What about nuclear pore

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Watch new lecture on nucleus

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[@rajasmitamoharana8962]

Sir give me plz the direct note the difference between constitutive and facultative

[@markrause1178]

He mixed up the concepts.
Constitutive lacks genetic information; it’s not expressed.
Facultative contains genetic information that isn’t expressed, but CAN be expressed (in the future)

[@satsanghtravellerinquisiti2839]

DNA + 1histone octamer = nucleosom and DNA + histone = nucleosome forming a thread like structure known as chromatin fibre.

[@krishnavaswani3257]

it goes from (DNA+Histone)Nucleosome--->Chromatin---->Chromatin Fibre---->Chromosomes

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shomu plz explain the genetic code?

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