Scelta multipla
In which of the following ways do cancer cells differ from healthy cells?
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11. Cell Division
Cancer
Scelta multipla
Which of the following statements about oncogenes is false?
A
Oncogenes are responsible for repairing DNA damage.
B
Oncogenes can lead to uncontrolled cell division.
C
Oncogenes can be activated by environmental factors.
D
Oncogenes are mutated forms of proto-oncogenes.
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Understand the role of oncogenes: Oncogenes are genes that have the potential to cause cancer. They are typically mutated or expressed at high levels, leading to uncontrolled cell division.
Differentiate between oncogenes and proto-oncogenes: Proto-oncogenes are normal genes that can become oncogenes due to mutations or increased expression. They play a role in normal cell growth and division.
Consider the environmental factors: Oncogenes can be activated by environmental factors such as radiation, chemicals, or viruses, which can lead to mutations in proto-oncogenes.
Evaluate the statement about DNA repair: Oncogenes are not responsible for repairing DNA damage. This function is typically carried out by tumor suppressor genes, which help maintain genomic integrity.
Identify the false statement: Based on the understanding that oncogenes do not repair DNA damage, recognize that the statement 'Oncogenes are responsible for repairing DNA damage' is false.
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