What happens during Anaphase?

What happens during Anaphase?

• A. Chromosomes condense.
• B. Chromatids separate toward the poles.
• C. Nuclear envelope forms.
• D. Chromosomes line up at the equator.

Answer: (B)

During Anaphase, sister chromatids separate and are pulled toward opposite poles by shortening of the kinetochore microtubules, with motor proteins driving the movement. This separation ensures that each daughter cell will receive an identical set of chromosomes. The other stages fit different events: chromosomes condense during prophase, chromosomes align at the equator during metaphase, and the nuclear envelope re-forms during telophase.

During Anaphase, sister chromatids separate and are pulled toward opposite poles by shortening of the kinetochore microtubules, with motor proteins driving the movement. This separation ensures that each daughter cell will receive an identical set of chromosomes. The other stages fit different events: chromosomes condense during prophase, chromosomes align at the equator during metaphase, and the nuclear envelope re-forms during telophase.