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Multiple Choice
What structure is responsible for moving the chromosomes during mitosis?
A
Spindle fibers
B
Cell membrane
C
Nucleolus
D
Ribosomes
Verified step by step guidance
1
Begin by understanding the process of mitosis, which is the division of a cell nucleus resulting in two daughter nuclei, each with the same number of chromosomes as the parent nucleus.
Identify the key structures involved in mitosis. These include the spindle fibers, centrioles, and the chromosomes themselves.
Focus on the role of spindle fibers. Spindle fibers are composed of microtubules and are crucial for the movement of chromosomes during mitosis.
During mitosis, spindle fibers attach to the centromeres of chromosomes and help align them at the cell's equatorial plane during metaphase.
In anaphase, spindle fibers shorten, pulling the sister chromatids apart toward opposite poles of the cell, ensuring each new nucleus receives an identical set of chromosomes.