Unit 5 Quiz 1: Cell Cycle, Cancer, & Hayflick

What is the main difference between prokaryotic and eukaryotic DNA?

• Prokaryotic DNA is linear, while eukaryotic DNA is circular.

• Prokaryotic DNA is circular, while eukaryotic DNA is linear.

• Both prokaryotic and eukaryotic DNA are linear.

• Both prokaryotic and eukaryotic DNA are circular.

Which phase of the cell cycle is known for DNA replication?

• G1 phase

• S phase

• G2 phase

• M phase

What is the role of tumor suppressor genes?

• They promote cell division.

• They repair damaged DNA.

• They prevent uncontrolled cell growth.

• They cause mutations in DNA.

What is apoptosis?

• Uncontrolled cell division

• Programmed cell death

• DNA replication

• Cell growth

Which of the following is a characteristic of cancer cells compared to normal cells?

• Cancer cells have a limited number of divisions.

• Cancer cells undergo apoptosis regularly.

• Cancer cells divide uncontrollably.

• Cancer cells have a normal cell cycle.

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What is the Hayflick limit?

• The maximum number of times a normal cell can divide

• The minimum number of times a cancer cell can divide

• The number of phases in the cell cycle

• The number of chromosomes in a human cell

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Which of the following is NOT a part of the cell cycle?

• Interphase

• Mitosis

• Cytokinesis

• Apoptosis

Which of the following statements is true about prokaryotic cells?

• They have a nucleus.

• They have membrane-bound organelles.

• They lack a nucleus.

• They have multiple chromosomes.

What is the primary function of the S phase in the cell cycle?

• Cell growth

• DNA replication

• Protein synthesis

• Cell division

What is the main purpose of the cell cycle?

• To repair damaged DNA

• To regulate cell size

• To ensure accurate DNA replication and cell division

• To promote apoptosis

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