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Multiple Choice
What occurs during anaphase in mitosis?
A
Sister chromatids are pulled apart to opposite poles of the cell.
B
The nuclear envelope re-forms around each set of chromosomes.
C
Chromosomes align at the cell's equatorial plane.
D
The cell grows and duplicates its DNA.
Verified step by step guidance
1
Understand that mitosis is a process of cell division that results in two genetically identical daughter cells from a single parent cell.
Recognize that mitosis consists of several phases: prophase, metaphase, anaphase, and telophase.
Focus on anaphase, which is the third phase of mitosis. During anaphase, the sister chromatids, which are identical copies of a chromosome connected by a centromere, are separated.
Explain that the separation occurs as the spindle fibers shorten, pulling the sister chromatids apart toward opposite poles of the cell.
Note that the separation of sister chromatids ensures that each daughter cell will receive an identical set of chromosomes, which is crucial for maintaining genetic consistency.