Chapter 24. Key Proteins Implicated in the Onset of Cancer

Animation Activities

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Animation Activity 24-15: Key Proteins Implicated in the Onset of Cancer

1.

Apoptotic proteins fall into which class of genes?

proto-oncogenes

tumor suppressors

genome maintenance genes

both proto-oncogenes and tumor suppressors

both proto-oncogenes and genome maintenance genes

Correct.

Incorrect.

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2.

Cell cycle control proteins are examples of:

proto-oncogenes.

tumor suppressors.

genome maintenance genes.

both tumor suppressors and genome maintenance genes.

both proto-oncogenes and tumor suppressors.

Correct.

Incorrect.

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3.

A gain-of-function mutation in one copy of a proto-oncogene would result in:

uncontrolled growth and proliferation of the cell.

inhibition of growth and proliferation of the cell.

no effect because mutations in proto-oncogenes tend to be recessive, requiring mutations in both gene copies.

apoptosis of the cell.

no effect unless a tumor-suppressor gene is also mutated.

Correct.

Incorrect.

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4.

The optimal scenario for cancer development would be:

loss-of-function mutations in proto-oncogenes, tumor suppressors, and genome maintenance genes.

gain-of-function mutations in proto-oncogenes, tumor suppressors, and genome maintenance genes.

gain-of-function mutations in proto-oncogenes and genome maintenance genes and loss-of-function mutations in tumor suppressors.

loss-of-function mutations in proto-oncogenes and gain-of-function mutations in tumor suppressors and genome maintenance genes.

gain-of-function mutations in proto-oncogenes and loss-of-function mutations in tumor suppressors and genome maintenance genes.

Correct.

Incorrect.

Try Again.

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Chapter 24. Key Proteins Implicated in the Onset of Cancer

Introduction

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