summary of cell cycle and its regulation
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Summary of Cell Cycle and its Regulation. AP Biology. Review of Cell Cycle. Sample Question. If the S phase were eliminated from the cell cycle, the daughter cells would Have half the genetic material found in the parent cell Be genetically identical to each other - PowerPoint PPT PresentationTRANSCRIPT
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Summary of Cell Cycle and its Regulation
AP Biology
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Review of Cell Cycle
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Sample QuestionO If the S phase were eliminated from
the cell cycle, the daughter cells would(A) Have half the genetic material found
in the parent cell(B) Be genetically identical to each
other(C) Be genetically identical to the parent(D) Synthesize the missing genetic
material on their own
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Sample QuestionO Select from one
of the choices that best fits the descriptionA. TelophaseB. InterphaseC. CytokinesisD. ProphaseE. Anaphase
DescriptionsO Cytokinesis during
this final stage of mitosis
O Division of cytoplasm
O Sister chromatids separate
O Genetic material replicates
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Checkpoints
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Sample QuestionsO After which of the following
checkpoints in the cell cycle is the cell first committed to divide?A. G2 checkpointB. M checkpointC. Interphase checkpointD. G1 checkpointE. MPF checkpoint
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Maturation Promoting Factor (MPF)
O Composed of cyclin bound to a cyclin dependent protein kinaseO CDK
O constant concentrationO Active only when bound to cyclin
O CyclinO Concentration varies during the cell
cycle
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Changes in Cyclin Concentration
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Practice ProblemO Look at Figure 7.9 in your handout and
read through the investigationO What was the purpose of radioactive
labelingO Why would you expect more radioactive
labeling of DNA during S phaseO What were the percentages of cells in S
phase in each of three experiments provided?
O What does that suggest in terms of control of cell cycle?
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Questions?????