A DNA lenght of about 2.2m is far greater than the dimensionof a typical nucleus app micro meter.how is such long polymer packaged in a cell???
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⭐HEY FRIEND⭐
In order to pack such a large chromosome or polymer into a small nucleus the DNA attaches to proteins which is known as "histones or histone protein"...... it have acids like Arginine & Lysine which bears positive charges and form an ionic bond with the negative phosphate group of DNA helix , now moving ahead there are four kinds of histones attached to the DNA: H2A, H2B, H3, and H4. All these proteins form an octamer protein complex called a "Nucleosome core" around which the DNA wraps two turns and then links to another nucleosome (10 nm diameter). This kind of arrangement condenses the DNA and this is all about how this gets packaged.
⭐HOPE YOU UNDERSTAND ⭐
In order to pack such a large chromosome or polymer into a small nucleus the DNA attaches to proteins which is known as "histones or histone protein"...... it have acids like Arginine & Lysine which bears positive charges and form an ionic bond with the negative phosphate group of DNA helix , now moving ahead there are four kinds of histones attached to the DNA: H2A, H2B, H3, and H4. All these proteins form an octamer protein complex called a "Nucleosome core" around which the DNA wraps two turns and then links to another nucleosome (10 nm diameter). This kind of arrangement condenses the DNA and this is all about how this gets packaged.
⭐HOPE YOU UNDERSTAND ⭐
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