Question

what happens during prophase? the chromosomes condense, and the centrioles move toward opposite sides of the cell. the chromosomes unravel. the sister chromatids are pulled apart to the opposite sides of the cell. two daughter cells form as the cytoplasm divides.

Explanation:

To determine the correct answer, we analyze each option based on the events of prophase in mitosis:

• Option 1: During prophase, chromosomes condense (becoming visible) and centrioles (in animal cells) move to opposite poles to form the spindle apparatus. This matches prophase events.
• Option 2: Chromosomes unravel (decondense) during telophase, not prophase. Eliminate.
• Option 3: Sister chromatids are pulled apart during anaphase, not prophase. Eliminate.
• Option 4: Cytokinesis (cytoplasm division to form two daughter cells) occurs after mitosis (telophase), not during prophase. Eliminate.

Answer:

The chromosomes condense, and the centrioles move toward opposite sides of the cell.