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14 Questions

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MBG307: The Cell Cycle Syllabus Quiz

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Questions and Answers

What is a characteristic of cancer cells?

Density-independent inhibition (correct)

Anchorage dependence

Balanced cell growth and apoptosis

Controlled cell division

Which of the following is a feature of normal cell growth?

Anchorage dependence (correct)

Density-independent inhibition

Uncontrolled cell growth

Loss of normal growth control

What is disrupted in cancer, leading to uncontrolled cell growth?

Density-dependent inhibition

Control of cell division

Cell apoptosis

Balance of cell growth and apoptosis (correct)

What is a characteristic of cancer cells compared to normal mammalian cells?

Loss of anchorage dependence Signup and view all the answers

Which term describes the phenomenon where normal cells stop dividing when they become crowded?

Density-dependent inhibition Signup and view all the answers

What is the term for the balance between new cell growth and old cell death in normal tissues?

Homeostasis Signup and view all the answers

What type of gene codes for growth factors and is active in actively dividing tissues?

Proto-oncogenes Signup and view all the answers

What is the role of tumor suppressor genes in cell division and cell cycle?

Inhibit and regulate cell proliferation Signup and view all the answers

Which of the following might occur in a cancer cell even without the trigger from a receptor?

Signal cascade activation without trigger from receptor Signup and view all the answers

Which type of viruses can trigger uncontrolled cell division by enabling transformation?

Both DNA and RNA viruses Signup and view all the answers

What is the function of oncogenes?

Produce too much growth factor and over stimulate mitosis Signup and view all the answers

How do oncogenic viruses interfere with the gene sequences that encode proteins involved in the cell cycle?

By interfering with the gene sequences Signup and view all the answers

What is the therapeutic strategy for treating cancer that involves preventing cells from entering the S-phase or blocking the S-phase or M-phase?

Phase-specific chemotherapies Signup and view all the answers

Which of the following is a characteristic of cancer cells?

"Only one daughter" Signup and view all the answers