Mitosis occurs in prokaryotic✔ eukaryotic cells.
What are the four phases of mitosis?
Chromatin condenses into chromosomes, and spindles begin to form.
Sister chromatids separate and move to opposite sides of the cell.
What is the end result of mitosis?
Sister chromatids line up along the middle of the cell.
Why is mitosis important to organisms? Check all that apply.
Explain the process of tissue cultures using healthy cells.
Explain the process of tissue cultures for cancer cells.
Tissue cultures of cancer cells involve removing cells from a living organism and placing them in a nutrientrich environment for growth. Cancer cells in a culture grow at an uncontrolled rate because they do not respond to normal regulatory signals. Unlike healthy cells, they lack contact inhibition, so they will continue to divide and pile up in multiple layers even after touching adjacent cells. Furthermore, cancer cells are often immortal in culture, meaning they can undergo mitotic divisions an unlimited number of times.
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Describe the benefits to using tissue cultures to study medications used for treating cancer cells.
During the final stage of the cell cycle, cytokinesis allows the cell to finish dividing, creating one cell✔ two cellsthree cells with ✔ identicaldifferent copies of DNA.
Chromosomes disperse and are no longer visible.
What would happen to an organism if mitosis did not occur? Check all that apply.
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