Question

sister chromatids separate, spindle fibers shorten pulling chromatids toward opposite sides of the cell, cell begins to lengthen
prophase
metaphase
anaphase
telophase

Explanation:

To determine the correct stage of mitosis, we analyze each option:

• Prophase: Chromosomes condense, nuclear envelope breaks down, spindle forms. Does not match the described events.
• Metaphase: Chromosomes align at the cell equator. Does not match the described events.
• Anaphase: Sister chromatids separate, spindle fibers shorten to pull chromatids to opposite poles, and the cell elongates. This matches the given description.
• Telophase: Chromatids reach poles, nuclear envelopes reform, cell starts to divide. Does not match the described events.

Answer:

C. anaphase