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1. Lesson 1 Foundations to Set the Stage
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Answer
2. Focusing on Cellular Structure and Function
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Answer
3. The Normal Cell Cycle
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Answer - z
The cell cycle refers to the ordered seres of processes of DNA replication and mitosis, or
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cell division
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Cell nucleus regulates these processes by gathering and processing complexes molecular
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nformation
4. Interphase and Mitotic Phase z z z
Answer Cell division produces two identical cells through these two major phases
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5. During interphase z
Answer Cell grows and DNA is replicated through the following three steps
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1 First growth phase (G1 or first gap)
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1z/z73
,2 Synthesis phase (S phase)
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3 Mitotic Phse (M phase)
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2z/z73
,6. First Growth Phase (G1 or first gap)
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Answer -cells increase in size z z z z
-reproduce RNA z
-"quality assurance" test that the cell will be ready to synthesis DNA
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-Length of time is variable, can be from hours to days
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7. Synthesis Phase (S phase) z z z z
Answer -DNA replicates z z
-Results in the formation of identical pairs of DNA (chromatids)
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-which are attached a t the centromere
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-lasts 2-10 hours
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8. Mitotic Phase (M phase) z z z
Answer - z
Replicated chromosomes are aligned, separated, and move into 2 new, identical daughte
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r cells
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-takes about 30-60 minutes
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9. Major points of cell regulation are entry and exit from
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3z/z73
, Answer -G1 checkpoint
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4z/z73