Explanation About nucleus and chromosome and their numiricals

The cell’snucleusis the command center of our cells. It contains ourgenetic information in the form of chromosomes that are needed for the reproduction and existence of life itself.
The chromosome is condensed form of DNA, the genetic material which isresponsible for our characteristics.
In human, There are 23 pairs of chromosome 22 pairs of autosomes and 1 pair of sex chromosomes