What does Y represent in the given figure? | vedclass

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(A) The given figure represents a nucleosome,which is the basic unit of $DNA$ packaging in eukaryotes.In this structure,the negatively charged $DNA$ i

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$H_1$ histone

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(A) The given figure represents a nucleosome,which is the basic unit of $DNA$ packaging in eukaryotes.In this structure,the negatively charged $DNA$ is wrapped around a positively charged histone octamer (labeled as $Z$).The histone octamer consists of two molecules each of four histone proteins $(H_2A, H_2B, H_3, H_4)$.The $H_1$ histone (labeled as $Y$) binds to the $DNA$ where it enters and leaves the nucleosome,helping to stabilize the structure.

Column-$I$	Column-$II$
$i$. Avery,McCarty,and MacLeod	$a$. $DNA$ digested by DNAse inhibits transformation of $R$ cells to $S$ cells.
$ii$. Griffith	$b$. $DNA$ replication is semi-conservative.
$iii$. Hershey and Chase	$c$. Used Streptococcus pneumoniae.
$iv$. Meselson and Stahl	$d$. Used radioactive Sulphur and Phosphorus.

What does $Y$ represent in the given figure?

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