WHICH STAGE OF CELL DIVISION YOU WILL SELECT TO STUDY THE MORPHOLOGY OF A CHROMOSOME AND WHY?

The chromosomes are in their most condensed state in the metaphase stage of the cell cycle, because the microtubules constituting the spindle asters exert force on them and pull them apart toward the opposite poles of the cell, so it it is the time when they most need to maintain their structural integrity. In simplewords, as the chromosomes are in condensed state and get stained completely in the metaphase stage, so it is easy to study the morphology of chromosomes in this stage.