AP Bio: Mitosis, Cancer, and Meiosis

Fruit fly body cells have 8 chromosomes. After mitosis, you would expect a resulting fruit fly daughter cell to have ...

• 16 chromosomes.
• 46 chromosomes.
• 8 chromosomes.
• 4 chromosomes.

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In human beings, mitosis is necessary for:

• growth and repair of tissues

• formation of the gametes, or sex cells

• reproduction of another individual

• reducing the number of chromosomes

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Interphase:

• occupies the majority of the cell cycle

• includes DNA replication

• includes growth of cell

• all are correct

What is occurring in this phase of mitosis?

• chromosomes are condensing

• chromosomes are aligned in the middle of the cell

• chromosomes are pulled apart

• two new nuclei are being formed

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If a cell undergoes mitosis repeatedly, but does not undergo cytokinesis, predict what the cells would look like:

• Many individual cells each with their own nucleus.

• One large cell with many nuclei.

• Two large cells with many nuclei in each cell.

• Many individual cells, each lacking a nucleus.

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How does mitosis in plant cells differ from mitosis in animal cells?

• animal cells form a cell plate
• plant cells form a cell plate
• plant cells go through the process in reverse
• plant cells go through two rounds of mitosis while animal cells just do one

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The point of attachment between two sister chromatids is called

• kinetochore
• centromere
• chromosome
• spindle

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Crossing over is important because....

• It prevents mutations from entering the gametes. 
• It allows for even distribution of chromosomes in the gametes.
• It allows for more genetic diversity of gametes.
• It allows for genetic uniformity of gametes. 

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What phase is represented?

• metaphase 1 of meiosis

• metaphase 2 of meiosis

• metaphase of mitosis

• none of the above

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What is the gender of the individual whose karyotype is seen in the image?

• Male
• Female