The Cell Division Cycle - Essential Cell Biology | Biology+

Course

Cell Biology

Study Pack

Set 1: Cells: The Fundamental Units of Life

Set 2: Chemical Components of Cells

Set 3: Energy, Catalysis, and Biosynthesis

Set 4: Protein Structure and Function

Set 5: DNA and Chromosomes

Set 6: DNA Replication and Repair

Set 7: From DNA to Protein

Set 8: Control of Gene Expression

Set 9: How Genes and Genomes Evolve

Set 10: Analyzing the Structure and Function of Genes

Set 11: Membrane Structure

Set 12: Transport Across Cell Membranes

Set 13: How Cells Obtain Energy From Food

Set 14: Energy Generation in Mitochondria and Chloroplasts

Set 15: Intracellular Compartments and Protein Transport

Set 16: Cell Signaling

Set 17: Cytoskeleton

Set 18: The Cell-Division Cycle

Set 19: Sexual Reproduction and the Power of Genetics

Set 20: Cell Communities: Tissues, Stem Cells, and Cancer

Set 18 The Cell Division Cycle

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Set 18 The Cell Division Cycle

(Multiple Choice)

Free

A cell that is terminally differentiated will

A)replicate its DNA.
B)reenter the cell cycle only once a year.
C)dismantle the cell-cycle control system.
D)arrest after S phase.

Answer

(Multiple Choice)

Free

Cells in the G₀ state

A)do not divide.
B)cannot reenter the cell cycle.
C)have entered this arrest state from either G₁ or G₂.
D)have duplicated their DNA.

Answer

(Multiple Choice)

Free

The G₁ DNA damage checkpoint

A)causes cells to proceed through S phase more quickly.
B)involves the degradation of p53.
C)is activated by errors caused during DNA replication.
D)involves the inhibition of cyclin-Cdk complexes by p21.

Answer