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Multiple Choice
What is separated during anaphase of mitosis?
A
Cytoplasm
B
Homologous chromosomes
C
Sister chromatids
D
Nuclear envelope
Verified step by step guidance
1
Understand the phases of mitosis: Mitosis is divided into several stages: prophase, metaphase, anaphase, and telophase. Each stage has specific events that occur to ensure proper cell division.
Focus on anaphase: During anaphase, the key event is the separation of sister chromatids. This is a critical step in mitosis where the duplicated chromosomes are pulled apart to opposite poles of the cell.
Define sister chromatids: Sister chromatids are identical copies of a single chromosome that are connected by a centromere. They are formed during DNA replication in the S phase of the cell cycle.
Explain the mechanism: In anaphase, the spindle fibers attached to the centromeres shorten, pulling the sister chromatids apart. This ensures that each new daughter cell will receive an identical set of chromosomes.
Clarify what is not separated: During anaphase of mitosis, neither the cytoplasm nor the nuclear envelope is separated. Homologous chromosomes are separated during meiosis, not mitosis.