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Cell Biology

1. While using a compound microscope, you observe a cell that is undergoing mitosis. You see double stranded chromosomes and a partial nuclear membrane. What phase is this cell in?

2. You are examining a slide showing cells undergoing mitosis. You see a cell in which a centriole is at each end of the cell and single stranded chromosomes are about halfway between the midregion of the cell and each centriole. What stage is this cell in?

3. Why would it be important for daughter cells to receive a portion of the cytoplasm during cells reproduction?

Solution Preview

1. While using a compound microscope, you observe a cell that is undergoing mitosis. You see double stranded chromosomes and a partial nuclear membrane. What phase is this cell in?

Prometaphase: The nuclear membrane dissolves, marking the beginning of prometaphase. The presence of chromosomes indicates that the chromatin have condensed and have gone through the prophase (the previous phase). Proteins attach to the centromeres creating the kinetochores. Microtubules attach at the kinetochores and ...

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