The nucleus of a eukaryotic cell can be stained by $..........$.

Thread-like structures composed of nuclear $DNA$ in eukaryotic cells that carry genetic information are known as chromosomes. Who coined the term 'chromosome'?

When the centromere is situated in the middle of the two equal arms of a chromosome,it is called:

What is the approximate size of the nucleus in a typical mammalian cell?

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

Which one of the following is the site for active ribosomal $RNA$ synthesis?