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Multiple Choice
In what way can cancer be hereditary?
A
A person can inherit cancer cells from one of his/her parents.
B
All of the mutations necessary for full cancer development can be inherited, giving a person a predisposition to developing cancer.
C
Proto-oncogenes can be inherited, giving the person a predisposition to developing cancer.
D
Tumor-suppressor genes can be inherited, giving the person a predisposition to developing cancer.
E
One or two of several mutations necessary for full cancer development can be inherited, giving a person a predisposition to developing cancer.
Verified step by step guidance
1
Understand that cancer is primarily caused by genetic mutations that lead to uncontrolled cell growth.
Recognize that while cancer itself is not directly inherited, the genetic predisposition to develop cancer can be passed down from parents to offspring.
Identify that proto-oncogenes and tumor-suppressor genes are types of genes that, when mutated, can contribute to cancer development. Proto-oncogenes can become oncogenes, promoting cell division, while tumor-suppressor genes normally inhibit cell division.
Acknowledge that inheriting mutations in these genes does not guarantee cancer, but it increases the risk. This is because additional mutations are usually required for cancer to develop fully.
Conclude that inheriting one or two mutations necessary for cancer development can predispose an individual to cancer, but other environmental or genetic factors are typically needed for cancer to manifest.