Exploring the Phases of Mitosis

What is the primary purpose of mitosis in cellular biology?

• To reduce the chromosome number by half

• To consume nutrients more efficiently

• To replicate the cell's DNA

• To ensure identical daughter cells are produced

What occurs during the S phase of interphase?

• Cell growth

• DNA replication

• Protein synthesis

• Mitotic spindle formation

During which phase of the cell cycle does DNA replication occur?

• G2 phase

• G1 phase

• M phase

• S phase

What is the role of the centrosome during mitosis?

• To create new cell membranes

• To organize the mitotic spindle

• To duplicate DNA

• To produce ATP

What happens to the nuclear envelope during prometaphase?

• It becomes permeable

• It changes composition

• It disappears, fragmenting into pieces

• It doubles in size

Which phase is characterized by the alignment of chromosomes along the metaphase plate?

• Prophase

• Telophase

• Metaphase

• Anaphase

Which phase follows metaphase and involves the separation of sister chromatids?

• Prophase

• Metaphase

• Anaphase

• Telophase

Which structure is responsible for pulling sister chromatids apart during anaphase?

• Nuclear envelope

• Centrosome

• Kinetochore

• Histone proteins

What is the significance of the cleavage furrow in animal cells?

• It stores nutrients

• It assists in dividing the cell into two

• It signals the end of mitosis

• It helps in DNA replication

How do plant cells differ from animal cells during cytokinesis?

• Plant cells do not divide

• Plant cells replicate their DNA differently

• Plant cells use a cleavage furrow

• Plant cells form a cell plate