Proto-Oncogenes Can Change into Oncogenes That Cause Cancer

question 63

Multiple Choice

Proto-oncogenes can change into oncogenes that cause cancer. Which of the following best explains the presence of these potential time bombs in eukaryotic cells?

• A) Proto-oncogenes first arose from viral infections.
• B) Proto-oncogenes normally help regulate cell division.
• C) Proto-oncogenes are genetic "junk."
• D) Proto-oncogenes are mutant versions of normal genes.
• E) Cells produce proto-oncogenes as they age.

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Definitions:

Independent Variables

In an experiment or model, these are the elements that are either manipulated or categorized to observe their impact on dependent variables.

Multiple Regression Analysis

A statistical technique that uses several independent variables to predict the outcome of a dependent variable.

Independent Variables

Variables that are manipulated or categorized to determine their effect on dependent variables in an experiment or study.

Data Points

Individual pieces of factual information collected from measurements or observations, used for analysis or calculation in a study or survey.