#1
Which of the following is a characteristic of cancer cells?
Increased sensitivity to growth signals
ExplanationCancer cells respond excessively to growth signals.
#2
Which of the following is a risk factor for developing cancer?
Tobacco use
ExplanationTobacco use increases the risk of various cancers.
#3
What is the function of tumor suppressor genes?
Inhibit cell cycle progression
ExplanationTumor suppressor genes prevent uncontrolled cell division.
#4
Which of the following is a hallmark of cancer?
Apoptosis evasion
ExplanationCancer cells avoid programmed cell death.
#5
Which type of gene mutation is commonly associated with cancer development?
Missense mutation
ExplanationMissense mutations alter protein function, contributing to cancer.
#6
What is angiogenesis in the context of cancer?
Formation of new blood vessels
ExplanationAngiogenesis supplies tumors with nutrients and oxygen.
#7
Which of the following is a potential side effect of chemotherapy?
Hair loss
ExplanationChemotherapy often causes temporary hair loss.
#8
What is the role of telomeres in cancer cells?
Maintain chromosomal stability
ExplanationTelomeres protect chromosome ends, crucial for stability.