Multiple Choice
In which phase of mitosis do spindle microtubules shorten, leading to the separation of sister chromatids toward opposite poles of the cell?
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11. Cell Division
Phases of Mitosis
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During which phase of mitosis does the DNA condense and coil into visible chromosomes?
A
Prophase
B
Metaphase
C
Anaphase
D
Telophase
Verified step by step guidance1
Understand the process of mitosis: Mitosis is the division of a cell's nucleus into two genetically identical nuclei, and it consists of several phases: prophase, metaphase, anaphase, and telophase.
Recall the key events of prophase: During prophase, the chromatin (uncoiled DNA) condenses and coils into visible chromosomes. This is a critical step to ensure the DNA is organized for proper segregation.
Compare the phases: Metaphase involves chromosomes aligning at the cell's equatorial plane, anaphase involves the separation of sister chromatids, and telophase involves the reformation of the nuclear envelope around the separated chromatids.
Identify the phase where DNA condenses: Based on the description, DNA condenses and coils into visible chromosomes during prophase.
Confirm the correct answer: The correct phase of mitosis where DNA condenses and coils into visible chromosomes is prophase.
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