The eukaryotic chromosomes are made up of

The length of a lampbrush chromosome is: (in $\mu m$)

Nucleoproteins in a cell are synthesized in

The chromosome with centromere near the end is called . . . . . . .

Who discovered the nucleus?

$S -$ Assertion: Individual chromosomes are not identifiable during interphase.
$R -$ Reason: They exist as highly extended and elaborate nucleoprotein fibers called chromatin.