Which stage of mitosis is characterized by the separation of sister chromatids and their movement toward opposite poles?

• A. Metaphase
• B. Anaphase
• C. Prophase
• D. Telophase

Answer: (B)

Verified step by step guidance

1. Understand the stages of mitosis: Mitosis is divided into several stages: prophase, metaphase, anaphase, and telophase. Each stage has distinct characteristics.
2. Identify the key event in the problem: The problem asks about the stage where sister chromatids separate and move toward opposite poles.
3. Recall the characteristics of each stage: In prophase, chromosomes condense and spindle fibers form. In metaphase, chromosomes align at the cell's equator. In anaphase, sister chromatids separate and move to opposite poles. In telophase, chromosomes arrive at the poles and begin to de-condense.
4. Focus on anaphase: During anaphase, the centromeres split, and the spindle fibers pull the sister chromatids apart toward opposite poles of the cell.
5. Conclude that anaphase is the stage characterized by the separation of sister chromatids and their movement toward opposite poles.