The shape of the chromosome is best studied during which phase in mitosis?

Explanation

During mitosis, the cell undergoes several stages in which the chromosomes are replicated and divided into two identical sets. The shape of the chromosome is best studied during the metaphase stage of mitosis. During metaphase, the replicated chromosomes align themselves along the equator of the cell, and their shape becomes more distinct and visible under a microscope. This alignment is important for ensuring that each resulting daughter cell receives a complete set of chromosomes. In contrast, during prophase, the chromosomes condense and become visible, but they are not yet arranged in a line. During anaphase, the chromosomes separate and move towards opposite poles of the cell, while during telophase, a new nuclear envelope forms around each set of chromosomes. Cytokinesis is the final stage of cell division, in which the cytoplasm divides to form two separate daughter cells. Therefore, the correct answer to this question is option B: Metaphase.