(a)How are the following formed and involved in DNA packaging in a nucleusof a cell?
(1) Histone octomer (in) Nucleosome (111)Chromatin
(b)Dillerentiate between euchiromintin and heterochromatin.
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i) histone is a positively charged protein. Makes the negatively charged dna coiled around ot and thus decreases the area occupied by it.
ii) nucleosome is the sum of histone, dna , and h1 protein.
iii) euchromatin is highly coiled and doesn't take place in replication while heterochromatin is loosed and takes part in the replication.
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