Chromatin found in the nucleus was discovered by

What is the $K.I.$ (Karyoplasmic Index) in cancerous cells?

In a $SAT$ chromosome,the $SAT$ (satellite) is the terminal part of the chromosome beyond the secondary constriction,which contains:

The given diagram shows the types of chromosomes (labelled as $A, B, C$ and $D$) based on the position of the centromere. Which one is the correct option for the labelled chromosomes $A, B, C$ and $D$?

How many layers are present in the nuclear envelope?

The $Feulgen$ reaction is used to stain which of the following?