Exploring the Phases of the Cell Cycle

What is the primary purpose of the cell cycle?

• To produce energy

• To eliminate waste

• To create new organisms

• To replace old cells and allow growth

Which phase does the cell spend most of its lifespan in?

• Interphase

• G2 Phase

• Prophase

• Mitosis

What happens during the G1 phase of Interphase?

• The cell grows and creates mRNA and protein

• The cell divides

• The cell undergoes cytokinesis

• The cell condenses its genetic material

What is the main event in the S phase?

• Cell growth

• DNA synthesis

• Protein creation

• Cell division

What is checked during the G1/S checkpoint?

• Cell size and DNA damage

• Spindle fiber attachment

• Chromosome alignment

• Cytokinesis completion

During which phase do spindle fibers attach to chromosomes?

• Anaphase

• Metaphase

• Telophase

• Prophase

What occurs during anaphase?

• Chromosomes condense

• Chromosomes align at the metaphase plate

• Sister chromatids are pulled to opposite poles

• The cell splits into two

What is the result of an error at the G1 checkpoint?

• Normal cell division

• Aneuploidy

• Cancer

• Cell death

What is aneuploidy?

• Rapid cell division

• Incorrect number of chromosomes in daughter cells

• Cell growth without division

• Normal cell cycle progression

What condition is caused by an error in the M checkpoint?

• Trisomy 21 (Down Syndrome)

• Cancer

• Normal cell division

• Cell death