Assertion : Histones are basic proteins of major importance in packaging of eukaryotic $DNA$. $DNA$ and histones comprise chromatin forming the bulk of eukaryotic chromosome.
Reason : Histones are of five major types $H_1,\,H_2A\,, H_2B,H_3$ and $H_4$ .
AIIMS 2000, Medium
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Histones are basic proteins found in the eukaryotic chromosomes. These are rich in the amino acids lysine and arginine. Histonie proteins are basic proteins consisting of $5$ types $-H_1,\,H_2A,\,H_2B,\,H_3,\,H_4$. $DNA$ is coiled around it. It exists as octamers linked with $H_1$.
Histones are basic proteins found in the eukaryotic chromosomes. These are rich in the amino acids lysine and arginine. Histonie proteins are basic proteins consisting of $5$ types $-H_1,\,H_2A,\,H_2B,\,H_3,\,H_4$. $DNA$ is coiled around it. It exists as octamers linked with $H_1$.
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