Biology CLEP Prep Practice Exam

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Prepare for the Biology CLEP Test with comprehensive flashcards and multiple choice questions. Each question comes with explanations and hints to ensure a full understanding. Boost your exam readiness today!

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What is the main purpose of a virus?

To help spread beneficial genes
To transmit foreign genetic material
To replicate within other cells
To boost a cell's immune system

The correct answer is: To replicate within other cells

Viruses are primarily known for their ability to replicate and spread within other cells. A) While some viruses may accidentally transfer beneficial genes, this is not their main purpose. B) Transmitting foreign genetic material would be a secondary function of a virus, as it is necessary for replication. D) Viruses do not boost a cell's immune system, but rather attack and weaken it. So, the main purpose of a virus is to replicate within other cells, causing infection and disease.