Understanding Mitosis

The video tutorial explains the process of mitosis, a type of cell division where a single cell divides to form two identical daughter cells. It covers the four stages of mitosis: prophase, metaphase, anaphase, and telophase. Each stage is described in detail, highlighting key events such as chromosome condensation, alignment, separation, and the formation of new nuclear membranes. The video also discusses the role of spindle fibers and the spindle checkpoint in ensuring accurate chromosome separation.

Who made the observation that all cells come from other cells?

• Gregor Mendel

• Rudolf Virchow

• Louis Pasteur

• Albert Einstein

What is the main event that occurs during prophase?

• Sister chromatids separate

• Chromosomes condense and spindle fibers form

• Chromosomes align in the middle of the cell

• Nuclear membranes form around daughter chromosomes

What is the role of spindle fibers during mitosis?

• To organize and move chromosomes

• To form the nuclear membrane

• To condense chromosomes

• To replicate DNA

During metaphase, where do the sister chromatids align?

• In the middle of the cell

• In the nucleus

• Outside the cell

• At the cell poles

What structure attaches to the centromeres during metaphase?

• Ribosomes

• Golgi apparatus

• Spindle fibers

• Mitochondria

What is the shortest stage of mitosis?

• Telophase

• Metaphase

• Prophase

• Anaphase

What happens to sister chromatids during anaphase?

• They condense

• They align in the middle

• They separate and move to opposite ends

• They form new nuclear membranes

During telophase, what forms around the daughter chromosomes?

• Centromeres

• Spindle fibers

• Nuclear membrane

• Cell wall

What marks the completion of mitosis?

• Chromosomes condense

• Sister chromatids align

• Spindle fibers attach to centromeres

• Nuclear membranes form around daughter chromosomes

Which phase of mitosis involves the formation of two separate nuclei?

• Prophase

• Anaphase

• Telophase

• Metaphase