Question

order the following events of the mitotic (m) phase from first to last.
first
last

Explanation:

1. Identify the stages of mitosis: The stages of mitosis in order are Prophase, Metaphase, Anaphase, Telophase (and Cytokinesis).

• Prophase: Chromosomes condense, spindle forms, nuclear envelope breaks down. The fourth image (single cell with condensed chromosomes and spindle fibers forming) is Prophase.
• Metaphase: Chromosomes line up at the equator of the cell. The second image (chromosomes aligned in the middle) is Metaphase.
• Anaphase: Sister chromatids separate and move to opposite poles. The third image (chromatids moving apart) is Anaphase.
• Telophase (and Cytokinesis): Nuclear envelopes reform, cell starts to divide. The first image (two cells forming) is Telophase/Cytokinesis.

1. Order from first to last: Prophase (fourth image) → Metaphase (second image) → Anaphase (third image) → Telophase/Cytokinesis (first image).

Answer:

First: The fourth image (single cell with condensed chromosomes and spindle fibers)
Then: The second image (chromosomes aligned at the equator)
Then: The third image (chromatids moving to opposite poles)
Last: The first image (two cells forming)

(To present in the order of first to last for the images as per their positions: 4th image, 2nd image, 3rd image, 1st image. If we number the images from top to bottom as 1,2,3,4 (first image is 1, second is 2, third is 3, fourth is 4), then the order is 4, 2, 3, 1.)