The chromosomes align at the equator during

The morphology of chromosomes is best observed during which stage of cell division?

Read the following statements:
$(a)$ Complete disintegration of the nuclear envelope marks the start of the second phase of mitosis.
$(b)$ Metaphase chromosome is made up of one sister chromatid.

The term,mitosis was coined by

An acrocentric chromosome at metaphase will be:

In which phase of the cell cycle are the structures known as kinetochores observed on chromosomes?