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Multiple Choice
Which of the following events characterizes metaphase of mitosis?
A
The nuclear envelope re-forms around each set of chromosomes.
B
Chromosomes align at the cell's equatorial plane.
C
Chromosomes condense and become visible.
D
Sister chromatids separate and move to opposite poles.
Verified step by step guidance
1
Understand the stages of mitosis: Mitosis is divided into several phases: prophase, metaphase, anaphase, and telophase. Each phase has distinct events that characterize it.
Identify the key event of metaphase: During metaphase, chromosomes align at the cell's equatorial plane, also known as the metaphase plate. This alignment is crucial for the equal distribution of genetic material to the daughter cells.
Differentiate between the phases: In prophase, chromosomes condense and become visible. In anaphase, sister chromatids separate and move to opposite poles. In telophase, the nuclear envelope re-forms around each set of chromosomes.
Focus on metaphase: The alignment of chromosomes at the equatorial plane ensures that each daughter cell will receive an identical set of chromosomes, which is essential for genetic consistency.
Review the options: Compare the given options with the key event of metaphase. The correct answer is the alignment of chromosomes at the cell's equatorial plane, distinguishing it from other phases.