Multiple Choice
During metaphase of mitosis, which of the following events occurs?
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16. Cell Division
Mitosis
Multiple Choice
In mitosis, what is the primary role of the mitotic spindle?
A
It forms the nuclear envelope around the chromosomes at the start of prophase.
B
It attaches to chromosomes (via kinetochores) and separates sister chromatids to opposite poles of the cell.
C
It replicates the cell's DNA during S phase to ensure each daughter cell receives a complete genome.
D
It catalyzes the synthesis of the contractile ring that pinches the cell in two during cytokinesis.
Verified step by step guidance1
Understand that mitosis is the process of cell division where one cell divides into two genetically identical daughter cells.
Recognize that the mitotic spindle is a structure composed of microtubules that forms during mitosis.
Know that the mitotic spindle attaches to chromosomes at specialized regions called kinetochores, which are located on the centromeres of sister chromatids.
Realize that the primary function of the mitotic spindle is to pull sister chromatids apart, moving them toward opposite poles of the cell to ensure each daughter cell receives an identical set of chromosomes.
Distinguish this role from other processes such as nuclear envelope formation, DNA replication, and cytokinesis, which are carried out by different cellular components.
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