Cell Cycle and Cellular Division Assessment

During which phase of interphase does DNA replication occur?

• G1 phase
• G2 phase
• S phase
• M phase

What is the primary function of G1 checkpoints in the cell cycle?

• To ensure DNA has replicated correctly
• To monitor cell size and environmental conditions
• To check chromosome alignment
• To initiate cytokinesis

Which phase of mitosis involves the breakdown of the nuclear envelope?

• Telophase
• Prophase
• Metaphase
• Anaphase

What structure forms during prophase and helps move chromosomes?

• Cell plate
• Cleavage furrow
• Centrioles
• Spindle fibers

Cancer cells are characterized by:

• Normal cell cycle checkpoints
• Uncontrolled cell division
• Slower division rates
• Enhanced differentiation

Neurons typically divide:

• Rapidly throughout life
• Only during development
• Every few months
• Yearly

What process creates the physical separation of cytoplasm in animal cells?

• Cell wall formation
• Nuclear division
• Cleavage furrow formation
• Chromosome segregation

Stem cells are unique because they:

• Cannot divide
• Only undergo meiosis
• Can differentiate into various cell types
• Die after one division

During which phase do chromosomes align at the cell's equator?

• Anaphase
• Telophase
• Metaphase
• Prophase

Which phase follows cytokinesis in a normal cell cycle?

• M phase
• S phase
• G2 phase
• G1 phase