Mitotic Phase

What are the phases of mitosis?

• Prophase, Metaphase, Anaphase, Telophase

• Telophase, Metaphase, Prophase, Anaphase

• Prophase, Metaphase, Anaphase, Interphase

• Interphase, Cytokinesis, Prophase, Anaphase

Answer explanation

The correct phases of mitosis are Prophase, Metaphase, Anaphase, Telophase.

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NGSS.HS-LS1-4

Explain the process of cell division during mitosis.

• Cell division during mitosis does not involve any specific phases

• Mitosis occurs in reverse order: telophase, anaphase, metaphase, prophase

• The process of cell division during mitosis involves prophase, metaphase, anaphase, and telophase.

• The process of cell division during mitosis involves only one phase

Answer explanation

The correct choice is that the process of cell division during mitosis involves prophase, metaphase, anaphase, and telophase.

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Describe the formation of the mitotic spindle.

• The mitotic spindle forms from microtubules that originate from centrosomes and attach to chromosomes at the kinetochores.

• The mitotic spindle forms from ribosomes that attach to chromosomes.

• The mitotic spindle forms from actin filaments instead of microtubules.

• The mitotic spindle forms spontaneously without any specific origin.

Answer explanation

The mitotic spindle forms from microtubules that originate from centrosomes and attach to chromosomes at the kinetochores.

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Which phase of mitosis involves the alignment of chromosomes at the center of the cell?

• Anaphase

• Telophase

• Prophase

• Metaphase

Answer explanation

Metaphase is the phase of mitosis where chromosomes align at the center of the cell, preparing for separation.

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What role does the centrosome play in mitosis?

• Centrosome stores genetic information for cell division

• Organizes microtubules to form the mitotic spindle

• Centrosome regulates gene expression during mitosis

• Centrosome produces energy for cell division

Answer explanation

The centrosome organizes microtubules to form the mitotic spindle, which is essential for proper chromosome segregation during mitosis.

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How does chromosomes duplication occur in mitosis?

• Sister chromatids are formed from different DNA strands

• Chromosomes are randomly duplicated

• Duplication occurs during the G1 phase

• DNA is replicated during the S phase of the cell cycle to form identical sister chromatids.

Answer explanation

Chromosomes duplicate by DNA replication during the S phase of mitosis, forming identical sister chromatids.

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What is the mechanism of cytokinesis in mitosis?

• Formation of a nuclear envelope around each set of chromosomes

• Formation of a spindle apparatus that pulls the cell apart

• Formation of a cell plate at the equator of the cell

• Formation of a contractile ring that constricts the cell at the cleavage furrow

Answer explanation

Cytokinesis in mitosis involves the formation of a contractile ring that constricts the cell at the cleavage furrow, leading to the separation of the two daughter cells.

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What is the significance of mitosis in cell division?

• Mitosis only occurs in plant cells.

• Mitosis leads to genetic diversity in daughter cells.

• Mitosis is not necessary for cell division.

• Mitosis ensures genetic stability by producing identical daughter cells.

Answer explanation

Mitosis ensures genetic stability by producing identical daughter cells.

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Why is mitosis important for growth and repair of tissues?

• Mitosis is only relevant for plant tissues.

• Mitosis produces identical daughter cells that help in tissue growth and repair.

• Mitosis leads to cell death.

• Mitosis creates genetic diversity in cells.

Answer explanation

Mitosis produces identical daughter cells that help in tissue growth and repair, ensuring the continuity of genetic information and the maintenance of proper cell function.

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Which phase of mitosis is shown?

• prophase

• metaphase

• anaphase

• telophase

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