Track 14

Unit 11

biology

DNA testing

Page 103

Build your vocabulary.

1) The police wanted access to DNA samples taken from the suspect. But the judge refused to release the samples.

2) The researchers concentrated on the role genetics play in our health. They didn’t focus on anything else.

3) Dr. Hassan couldn’t figure out what was wrong with her patient. She decided to use genetic testing to help diagnose the patient’s disease.

4) In the crime lab, scientists extract DNA from samples of hair, skin, and fingernails. After they removed the DNA from the samples, they test it.

5) The twin brothers looked a lot alike, but they weren’t identical twins; one had brown hair and one had blonde hair.

6) The lab technician saw that the two blood samples didn’t match, so she concluded that the blood was from two different people.

7) The medical field uses DNA tests to find out who is at risk for certain diseases.

8) The Morettis wanted to have a baby, so they had a DNA test. It revealed that their baby might inherit a genetic disorder from the father.

9) Statistically, it’s very unlikely that two people will have the same DNA profile. The chance of this happening is less than 1 percent.

10) Our DNA contains genetic information such as eye color and other traits passed down from a mother and father to their child.