Multiple Choice
In a typical animal cell, which stage is generally the longest stage of mitosis?
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16. Cell Division
Mitosis
Multiple Choice
In mitosis, which description best matches the appearance of a cell during metaphase?
A
Sister chromatids have separated and are moving toward opposite poles of the cell.
B
The nuclear envelope is fully intact and chromatin is diffuse throughout the nucleus.
C
Chromosomes are aligned at the cell’s equatorial plane (metaphase plate), with spindle microtubules attached to kinetochores from opposite poles.
D
Two new nuclear envelopes have formed around chromosome sets and the cell is completing cytokinesis.
Verified step by step guidance1
Recall the key stages of mitosis: prophase, metaphase, anaphase, and telophase, each with distinct cellular features.
Understand that during metaphase, chromosomes are highly condensed and align at the cell's equatorial plane, known as the metaphase plate.
Recognize that spindle microtubules attach to the kinetochores of sister chromatids from opposite poles, preparing for their separation.
Note that sister chromatids have not yet separated during metaphase; this separation occurs in anaphase.
Remember that the nuclear envelope breaks down before metaphase and reforms only after mitosis is nearly complete, so it is not intact during metaphase.
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