Review: Unit 2 Cell Structure, Function and Energy

Before cells can divide, what happens to the DNA?

• It is replicated

• It increases in size

• It is divided in half

• It decreases in size

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The individual strands on the duplicated chromosomes are called

• chromatin

• chromosomes

• chromatids

• centromere

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What happens in prophase of mitosis?

• The chromosomes become visible; nucleus disappear; spindles form

• The chromosomes align in the middle of the cell

• The sister chromatids separate

• The chromosomes uncoil into chromatin; nucleus reappears; spindles disappear

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What happens in cytokinesis?

• The chromosomes become visible; nucleus disappears; spindles form

• The chromosomes align in the middle of the cell

• The DNA is duplicated

• The cytoplasm divides into two new daughter cells

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Which phase of mitosis is shown here?

• prophase

• metaphase

• anaphase

• telophase

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Which phase of mitosis is shown here?

• prophase

• metaphase

• anaphase

• telophase

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Which phase of mitosis is shown here?

• prophase

• metaphase

• anaphase

• telophase

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Which of the following is the correct order of mitosis?

• prophase, metaphase, anaphase, telophase

• metaphase, telophase, anaphase, prophase

• telophase, anaphase, metaphase, prophase

• prophase, anaphase, telophase, metaphase

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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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Which phase of the cell cycle is the longest?

• Prophase

• Metaphase

• Interphase

• Cytokinesis