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Multiple Choice
During which phase of mitosis does the spindle apparatus align the chromosomes along the equator of the cell?
A
Prophase
B
Anaphase
C
Telophase
D
Metaphase
Verified step by step guidance
1
Understand the process of mitosis, which is the division of a single cell into two genetically identical daughter cells. Mitosis consists of several phases: prophase, metaphase, anaphase, and telophase.
Recognize that during prophase, the chromosomes condense and become visible, and the spindle apparatus begins to form, but the chromosomes are not yet aligned.
Identify that during metaphase, the spindle apparatus fully forms and aligns the chromosomes along the equator of the cell, known as the metaphase plate. This alignment ensures that each daughter cell will receive an identical set of chromosomes.
Note that during anaphase, the sister chromatids are pulled apart by the spindle fibers towards opposite poles of the cell, following their alignment in metaphase.
Understand that during telophase, the chromosomes reach the poles, de-condense, and are enclosed by a new nuclear envelope, completing the process of mitosis.