The eukaryotic chromosomes are made up of
$DNA$
$RNA$
$DNA$ and proteins
$DNA$ and lipids
Chromosomes can be stained with
Diameter of each nucleosome is about
An inactive repressor produced by regulator gene that does not block the operator site in the tryptophan Operon is called
Which of the following is incorrectly paired
Okazaki fragments are joined in $3$ correct sequence by