Cell Cycle and Mitosis Concepts

The video provides a comprehensive review of the cell cycle and mitosis. It begins with an overview of the cell cycle phases: G1, S, and G2, highlighting the normal activities of cells, DNA replication, and preparation for division. The process of mitosis is then explained, detailing its four phases: prophase, metaphase, anaphase, and telophase, followed by cytokinesis, which completes cell division. The video concludes with a summary of these processes, emphasizing the formation of two new cells.

What is the primary activity of a cell during the G1 phase?

• Chromosome alignment

• Cell division

• Normal cell activities

• DNA replication

During which phase does DNA replication occur?

• Mitosis

• S phase

• G2 phase

• G1 phase

What is the main purpose of mitosis in the cell cycle?

• To replicate DNA

• To divide the nucleus

• To perform normal cell activities

• To dissolve the nuclear membrane

Which phase of mitosis involves the formation of spindle fibers?

• Anaphase

• Metaphase

• Prophase

• Telophase

During metaphase, where do the chromosomes align?

• In the cytoplasm

• In the middle of the cell

• At the cell poles

• In the nucleus

What happens to sister chromatids during anaphase?

• They condense

• They align in the center

• They move to opposite sides

• They dissolve

In which phase do chromosomes uncoil into nuclei?

• Prophase

• Anaphase

• Telophase

• Metaphase

What is the final result of cytokinesis?

• Chromosome alignment

• DNA replication

• Two new nuclei

• Two new cells

Which phases are included in interphase?

• Cytokinesis

• Prophase, Metaphase, Anaphase

• Anaphase and Telophase

• G1, S, and G2

What is the sequence of phases in mitosis?

• Telophase, Anaphase, Metaphase, Prophase

• Prophase, Anaphase, Metaphase, Telophase

• Metaphase, Prophase, Anaphase, Telophase

• Prophase, Metaphase, Anaphase, Telophase