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Multiple Choice
Which of the following is a characteristic of a cell in prophase?
A
Chromosomes condense and become visible.
B
Chromosomes align at the cell's equator.
C
The nuclear envelope re-forms around chromosomes.
D
Sister chromatids are pulled apart.
Verified step by step guidance
1
Understand the stages of mitosis: Mitosis is divided into several phases, including prophase, metaphase, anaphase, and telophase. Each phase has distinct characteristics.
Identify the characteristics of prophase: During prophase, the chromatin condenses into visible chromosomes, and the mitotic spindle begins to form. The nuclear envelope starts to break down.
Differentiate prophase from other phases: In metaphase, chromosomes align at the cell's equator. In anaphase, sister chromatids are pulled apart. In telophase, the nuclear envelope re-forms around chromosomes.
Focus on the key feature of prophase: The condensation of chromatin into visible chromosomes is a hallmark of prophase, making them easier to observe under a microscope.
Review the options given: Compare the characteristics of prophase with the options provided to identify the correct answer, which is that chromosomes condense and become visible.