Question

Which properly traces the movement of chromosomes during mitosis?

Answer 1

Mitosis consists of sequential stages starting with prophase and ending with cytokinesis, during which the chromosomes condense, attach to spindle fibers, align at the metaphase plate, are pulled apart during anaphase, and are separated into two new nuclei in telophase.

Step-by-step explanation:

To properly trace the movement of chromosomes during mitosis, one must understand the sequential stages involved in this process. Mitosis is a critical aspect of cell division that ensures each daughter cell receives an exact copy of the parent cell's chromosomes.

1. Prophase: Chromosomes condense and become visible. The mitotic spindle begins to form, but the nuclear envelope is still intact.
2. Prometaphase: The nuclear envelope breaks down, allowing spindle fibers to attach to kinetochores on the chromosomes.
3. Metaphase: Chromosomes align at the metaphase plate, with sister chromatids facing opposite poles.
4. Anaphase: Cohesion proteins dissolve, and sister chromatids are pulled apart by the spindle fibers toward opposite poles.
5. Telophase: Nuclear membranes start to reform around separated sister chromatids, now individual chromosomes, at the poles of the cell.
6. Cytokinesis: The cytoplasm divides, creating two daughter cells, each with a complete set of chromosomes.

Answer 2

The cellular structure which traces the movement of chromosomes during mitosis is the centrioles. Centrioles are mainly constructed of microtubules and are responsible for directing the movement of chromosomes during mitosis.
Mitosis is the process of the cell cycle where one cell splits its duplicated genetic material into two identical cells. Centrioles are part of the mitotic spindle which is the structure that organizes and moves the chromosomes into these two daughter cells.