Recognizing the topic sentences.

Find the topic sentences in the four paragraphs of the reading.

Paragraph A ______________________________________________________.

Paragraph B ______________________________________________________.

Paragraph C ______________________________________________________.

Paragraph D ______________________________________________________.

Answers:

Paragraph A Recent technological changes are making modern medicine a more popular and exciting field than ever before.

Paragraph B Together, these diseases detectives work to find the causes of modern killer disease.

Paragraph C genetics is an important part of modern science and medicine. Medical geneticists are scientists who study DNA and genes for many purposes.

Paragraph D Organ transplants are more common today than ever before.