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Genetics Chapter 24 Test Bank Exam Questions with Latest Update
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Which of the following is a type of genetic change that could produce an oncogene? - Answer-Chromosomal translocation Gene amplification Missense mutation The p53 protein has the function of... - Answer-p53 activates genes that promote apoptosis, such as caspaces. Most forms of cancer invol...

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  • August 16, 2024
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  • which of the following is a type of genetic change

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Genetics Chapter 24 Test Bank Exam
Questions with Latest Update
Which of the following is a type of genetic change that could produce an oncogene? -
Answer-Chromosomal translocation
Gene amplification
Missense mutation

The p53 protein has the function of... - Answer-p53 activates genes that promote
apoptosis, such as caspaces.

Most forms of cancer involve... - Answer-the activation of multiple oncogenes and the
inactivation of multiple tumor-suppressor genes in any number of different orders.

Tumor-suppressor genes promote cancer when... - Answer-their function is inactivated.

With regard to cancer cells, which of the following statements are TRUE? - Answer-To
become cancerous, cells usually accumulate multiple genetic changes that eventually
result in uncontrolled cell growth
Cancer cells are clonal, which means they are derived from a single mutant cell
Cancer cells have lost the ability to properly regulate cell division

Tumor-suppressor genes promote cancer when... - Answer-their function is inactivated

Which of the following is NOT a characteristic of an inherited form of cancer? - Answer-
tends to be inherited in a recessive fashion

Normal (nonmutant) tumor-suppressor genes often function... - Answer-As negative
regulators of cell division
In the promotion of apoptosis
In the maintenance of genome integrity (e.g. repairing damaged DNA)

Oncogenes function in several ways. Choose the FALSE response from this list. -
Answer-Oncogenes may be under-expressed (down-regulated)

Which of the following is TRUE of the ras gene/protein and how it becomes a cancer-
causing gene? - Answer-Ras is the most common oncogene in the majority of tumors

Tumor-suppressor genes can be lost in three ways. Which of the following is NOT one
of those ways? - Answer-A mutation in the tumor-suppressor gene could up-regulate
gene expression.

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