AP Bio Cell Cycle and Signaling

What correctly describes the DNA content in the G2 phase?

• normal amount
• double amount
• increasing
• decreasing

Tags

NGSS.HS-LS1-4

Cells do not need growth factors to grow.

• Regular cells
• Cancer cells

Cells are anchorage dependent.

• Regular cells
• Cancer cells

Cell growth is not inhibited by contact with other cells.

• Regular cells
• Cancer cells

Cyclin concentrations are in normal ranges.

• Regular cells
• Cancer cells

Tags

NGSS.HS-LS1-4

What correctly describes the DNA content in the G1 phase?

• normal amount
• double amount
• increasing
• decreasing

Which description is true about cell cycle regulation?

• Changing concentrations of cdk result in binding to cyclin
• Changing concentrations of cyclin result in binding to cdk
• MPF complex formation decreases with increased cdk levels
• MPF complex formation decreases with increased cyclin levels

In which stage are cells more susceptible to mutations? 

• G1
• S
• G2
• G0

When examining actively dividing cells under a microscope, in which stage will most of the cells be in?

• Prophase
• Anaphase
• Telophase
• Interphase

Tags

NGSS.HS-LS1-4

Which description results in inhibition of signal transduction?

• An inactive molecule that blocks the active site of the receptor
• Binding of a ligand to a receptor
• Amplification of the signal
• Second messengers