Consider the following statements :

1. DNA replication takes place when chromatin is opened up.

2. Chromatin organises itself into rod-shaped chromosomes before cell division.

3. Both prokaryotes and eukaryotes have the same process for cell division.

Which of the statements given above is/are correct?

Human body works in the pH range of :

Leaves of most plants appear green because the chlorophyll present in it :

In most prokaryotes, the chromosome number is: