Assertion : Histones are basic proteins of ma | vedclass

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(B) Histones are basic proteins found in eukaryotic chromosomes,which are rich in positively charged amino acids like lysine and arginine.These protei

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If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.

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(B) Histones are basic proteins found in eukaryotic chromosomes,which are rich in positively charged amino acids like lysine and arginine.These proteins are essential for the packaging of negatively charged $DNA$ into chromatin.There are five major types of histone proteins: $H_1, H_2A, H_2B, H_3$,and $H_4$.While both the Assertion and the Reason are scientifically correct statements,the Reason describes the types of histones but does not directly explain why they are important for packaging (which involves their basic nature and charge).Therefore,the Reason is not the correct explanation for the Assertion.

List-$I$	List-$II$
$(a)$ Helicase	$(i)$ $DNA$-dependent $DNA$ synthesis
$(b)$ Ribonuclease	$(ii)$ Digestion of $RNA$
$(c)$ Reverse transcriptase	$(iii)$ Breaking hydrogen bonds between $DNA$ strands
$(d)$ $DNA$ polymerase	$(iv)$ $RNA$-dependent $DNA$ synthesis

Column $I$	Column $II$
$A$. $VNTR$	$p$. Largest gene
$B$. Introns and exons	$q$. $DNA$ fingerprinting
$C$. Dystrophin	$r$. Bulk $DNA$
$D$. Satellite	$s$. Splicing

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 $H_4$.

Similar Questions

The central dogma of molecular biology is shown below. Identify the processes $P, Q,$ and $R$.

The alternative valence states of $DNA$ bases in $A=T$ and $G=C$ pairs are known as:

Statement-$I$: The split gene arrangements represent probably an ancient feature of the genome.
Statement-$II$: Introns or intervening sequences do not appear in mature or processed $\text{RNA}$.

Match the following:
Column $I$ Column $II$
$A$. $VNTR$ $p$. Largest gene
$B$. Introns and exons $q$. $DNA$ fingerprinting
$C$. Dystrophin $r$. Bulk $DNA$
$D$. Satellite $s$. Splicing

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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 $H_4$.