Where is the $DNA$ found?

Match column-$I$ with column-$II$ and choose the correct option.

Column-$I$ (Chromosome)	Column-$II$ (Position of Centromere)
$A$. Metacentric	$I$. At the tip
$B$. Submetacentric	$II$. Almost near the tip
$C$. Acrocentric	$III$. At the middle
$D$. Telocentric	$IV$. Slightly away from the middle

The chromosomes in which the centromere is situated close to one end are:

The genomic content of the nucleus is constant for a given species,whereas the extrachromosomal $DNA$ is found to be variable among the members of a population. Explain.

Telocentric chromosome differs from acrocentric chromosome in that

Who coined the term '$chromosome$'?