What will happen if you are provided with root-tips of onion in your class and are asked to count the chromosomes, which of the following stage can be observed easily?

Onion root tips are used to study the stages of cell division as, root tip contains highly dividing cells. Metaphase chromosome is a chromosome in the stage of the cell cycle (the sequence of events in the life of a cell) when a chromosome is most condensed and easiest to distinguish and so to study. Metaphase chromosomes are often chosen for karyotyping and for chromosome analysis because they are readily seen.