Mitosis

Which phase of mitosis is characterized by the condensation of chromatin into visible chromosomes?

• Telophase

• Prophase

• Anaphase

• Metaphase

During which stage of mitosis do sister chromatids separate and move to opposite poles of the cell?

• Prophase

• Anaphase

• Telophase

• Metaphase

What is the main purpose of mitosis in multicellular organisms?

• Sexual reproduction

• Growth and tissue repair

• Production of gametes

• Decreasing the chromosome number by half

Which of the following is NOT a stage of mitosis?

• Interphase

• Prophase

• Metaphase

• Telophase

In which phase of mitosis do the chromosomes align at the cell's equatorial plate?

• Telophase

• Prophase

• Anaphase

• Metaphase

What is the significance of the spindle fibers during mitosis?

• They duplicate the DNA.

• They break down the nuclear membrane.

• They assist in the movement of chromosomes.

• They synthesize RNA.

Which of the following best describes cytokinesis?

• Division of the cell's cytoplasm

• Division of the cell's nucleus

• Synthesis of DNA

• Condensation of chromatin

How is the cell cycle regulated?

• By environmental factors only

• By a series of specialized proteins

• By the number of cells in the organism

• By the size of the cell

What happens if mitosis is not properly regulated?

• Cells become more specialized.

• The cell cycle speeds up significantly.

• It can lead to the development of tumors.

• The number of chromosomes in cells decreases.

During which phase of mitosis does the nuclear envelope re-form around the separated chromosomes?

• Prophase

• Anaphase

• Telophase

• Metaphase