The structural formula of the pentose sugar p | vedclass

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(B) The pentose sugar present in $DNA$ is $2$-deoxyribose.In a ribose sugar,there is an $-OH$ group at the $2'$ carbon position.In $2$-deoxyribose,the

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(B) The pentose sugar present in $DNA$ is $2$-deoxyribose.In a ribose sugar,there is an $-OH$ group at the $2'$ carbon position.In $2$-deoxyribose,the oxygen atom is removed from the $2'$ position,leaving only a hydrogen atom $(-H)$ at that position.The structure provided shows the $2'$ carbon position marked as '$X$'.Since it is $DNA$,the sugar is $2$-deoxyribose,so the '$X$' position must be occupied by a hydrogen atom $(-H)$.Looking at the options,option $B$ represents the $-H$ and $-H$ configuration at that carbon,which corresponds to the deoxy position.

List-$I$	List-$II$
$A$. Alfred Hershey and Martha Chase	$I$. Streptococcus pneumoniae
$B$. Euchromatin	$II$. Densely packed and dark-stained
$C$. Frederick Griffith	$III$. Loosely packed and light-stained
$D$. Heterochromatin	$IV$. $DNA$ as genetic material confirmation

The structural formula of the pentose sugar present in $DNA$ is given. Select the correct group for the position marked '$X$' from the options.

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