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Multiple Choice
Which of the following phases is the first step in mitosis?
A
Prophase
B
Metaphase
C
Telophase
D
Anaphase
Verified step by step guidance
1
Understand that mitosis is the process of cell division that results in two genetically identical daughter cells. It consists of several phases: prophase, metaphase, anaphase, and telophase.
Recognize that prophase is the first phase of mitosis. During prophase, the chromatin condenses into visible chromosomes, and the mitotic spindle begins to form.
In prophase, the nuclear envelope starts to break down, allowing the spindle fibers to interact with the chromosomes.
Metaphase, anaphase, and telophase follow prophase in the sequence of mitosis. Metaphase is characterized by the alignment of chromosomes at the cell's equatorial plane.
Anaphase involves the separation of sister chromatids, and telophase is when the nuclear envelope re-forms around the separated sets of chromosomes, completing the process of mitosis.