Identifying Mitosis Stage from Photomicrograph Features

Steps:

• Examine chromosome position: aligned at equator indicates metaphase (stage 2).
• Check spindle apparatus: fibers attached and pulling chromosomes apart indicates anaphase (stage 3).
• Rule out other stages: no condensation or nuclear envelope breakdown (prophase, stage 1).
• Confirm dual processes: simultaneous alignment and initial separation visible in transition.

Why C is correct:

• Mitosis definition requires metaphase alignment (stage 2) followed immediately by anaphase separation (stage 3), matching the photomicrograph's dual features.

Why the others are wrong:

• A includes stage 1 (prophase condensation), absent in the image.
• B includes stage 1, ignoring visible anaphase separation.
• D omits stage 2 alignment, incomplete for the observed equator positioning.

Final answer: C