Paired Passages - Quiz #3 (Solving Crimes & Lie Detectors)

What was the author’s purpose in writing “The New Science of Solving Crimes”?

• to explain how DNA is used to solve crimes

• to point out problems with using DNA to solve crimes

• to give the history of several old mysteries

• to warn against using DNA databases

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According to the first article, why is DNA a great tool for solving crimes?

• because DNA is very tiny

• because your DNA is in your saliva

• because everyone’s DNA is unique

• because analyzing DNA is not expensive

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What is the central idea of the section “Family Trees”?

• Most old mysteries are never solved.

• DNA can be found in parks and gardens.

• Many families send their DNA to testing companies.

• DNA can be used to find relatives of suspects or unknown people.

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Based on the first article, which prediction is most likely to come true?

• Every old mystery will be solved.

• People will soon stop using DNA to solve crimes.

• DNA testing companies will soon go out of business.

• Solving crimes will become easier as police collect more DNA.

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Based on the second article, which statement about polygraphs is true?

• They are expensive.

• They measure stress.

• They can harm your body.

• They’re used in most criminal cases today.

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Both articles support the idea that...

• lying makes people nervous.

• better polygraphs will be invented.

• tools for solving crimes have changed over time.

• people leave traces of themselves wherever they go.

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