The Glowing Beagle

Read the first sentence of the selection.

"Dogs have provided many services for people over the years."

What relationship does this sentence have with the rest of thee first paragraph?

• It introduces a problem. The rest of the paragraph lists possible solutions.

• It states an observed effect. The rest of the paragraph examines causes.

• It provides an opinion. The rest of the paragraph provides reasons.

• It presents an idea. The rest of the paragraph gives examples.

What tone does the author set by using the words potential, original, and eliminate in paragraph 2?

• critical and suspicious

• concerned and anxious

• friendly and welcoming

• scientific and knowledgeable

Read the sentence below from paragraph 8.

"They see great potential in these developements and hope that the future of scientific research on genes is bright, not only for humans, but for their best friends, the dogs."

Why does the author most likely use the phrase "research on genes is bright" in this sentence?

• to play on the idea that the glow of dogs is also lighting the way to curing disease

• to emphasize that bioluminescence can be tested on humans as well as dogs

• to suggest that glowing dogs will repleace other kinds of testing in the future

• to persuade people that the potential benefits of dog testing outweigh any criticism

Which sentence from the selection shows why dogs are good gene-transfer test subjects?

• "Dogs have provided many services for people over the years."

• "Human beings and dogs share the ability to contract 268 diseases."

• "They are better subjects to study than laboratory rats or mice."

• "Small creatures such as mice and rats can live happily in small cages, but dogs of course cannot."

How does the selection connect the idea of glowing beagles to the research of human diseases?

• by illustrating how diseased areas of a beagle glow to help doctors find illnesses in people

• by showing how beagles glow when they are near sick hospital patients

• by revealing how scientists use glowing genes in a beagle to search for and destroy diseased cells

• by explaining how a glowing beagle shows that scientists can tranfer genes

Which sentence best supports the idea that while the author believes the discovery is a postivie one, she also wants to acknolwedge there are people who opposie it?

• "And of course, dogs are probably best known for their faithful companionship to individuals and families."

• "The result was a delightful dog named Tegan who is like any other beagle except that she appears to glow when placed under an ultraviolet light."

• "Although tranferring flourescent genes to a dog does not harm a dog in any way, there are some critics of the process."

• by explaining how a glowing beagle shows shows that scientists can tranfer genes

What evidence does the author provide to support her claim that bioluminescent dogs can help eliminate a disease?

• She gives examples of the important jobs that dogs do.

• She explains that scientists have creates a way to transfer genes.

• She describes how animals benefit by their ability to glow.

• She shows the arguments people have against testing on dogs.

Read the sentence below from paragraph 3.

"Bioluminescent means a creature can produce and emit its own light."

What does the word emit mean in this sentence?

• bring back

• give off

• exhale

• switch

Which choice gives the best summary of the idea in the selection?

• Some animals, such as jellyfist, can produce their own light. By transferring the light-producing gene to dogs, scientists have found a way to make dogs glow when placed under ultraviolet light. This could lead to important discoveries.

• The fascinating study of bioluminescent sea creatures has led to new research for curing diseases. However, scientists now cruelly perform tests, such as gene transfers, on live animals.

• By sucessfully transferring genes from light-producing sea creatures to dogs, scientists have found a way to study and possibly cure dieseases in people. Although there are several drawbacks, scientists are hopeful that the challenges can be overcome."

• Scientists have discovered a cure for Alzheimer's disease. By tranferring genes from bioluminescent sea creatures to dogs, researches discovered where disease-producing genes can be found. They found ways to prevent these genes from becoming active.