AP Biology Cell Cycle and Regulation

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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NGSS.HS-LS1-4

Phase?

• prophase

• anaphase

• metaphase

• telophase

• interphase

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NGSS.HS-LS1-4

Phase?

• prophase

• anaphase

• metaphase

• telophase

• interphase

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NGSS.HS-LS1-4

Phase?

• prophase

• anaphase

• metaphase

• telophase

• interphase

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NGSS.HS-LS1-4

Which of the following is a type of protein that regulates the cell cycle? 

• actin 

• myosin 

• cyclin 

• pepsin 

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NGSS.HS-LS1-4

The chromosome in the diagram 

• has been replilcated

• consists of 2 copies of 1 chromosome

• is about to go through cell division

• all of the above.

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NGSS.HS-LS1-4

Why do hormones not affect every cell in the body when they are released?

• All cells are affected by a hormone when it is released

• A cell needs a specific receptor for the hormone to be affected

• A cell must have the proper ATP levels to activate a cellular response

• Cells need compatible DNA for the hormone to activate transcription of a gene

Which of these cellular components are most directly involved with density dependent inhibition in the cell cycle?

• Membrane proteins

• Spindle fibers

• Nucleus

• Centrioles

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NGSS.HS-LS1-4

If a medicine works by blocking a secondary messenger, what effect would it have on that cell signaling pathway?

• It would increase the response if the pathway

• It would trigger the release of more ligands

• It would activate the transcription of a desired gene

• It would inhibit transduction, thus deactivating the response

After metaphase what phase occurs next in mitosis?

• Prophase

• Prometaphase

• Anaphase

• Telophase

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NGSS.HS-LS1-4