Objective: The student will recognize the role of CCL5 gene in the response of immune cells (macrophages).

1	Germs like the flu are fought by the:
	A)	respiratory system
	B)	endocrine system
	C)	immune system
	D)	digestive system
2	What is the significance of the cells that have been targeted in this study?
	A)	These cells don’t die when they come into contact with a germ, instead they trap the virus inside of them.
	B)	These cells produce a digestive protein that destroys the viruses on contact.
	C)	These cells have been created in laboratory settings.
	D)	These cells have more lysosome content which increases their ability to destroy the viruses.
3	What was seen when comparing cells that had the CCL5 gene than those cells who didn’t?
	A)	The mice that were missing the gene died
	B)	The mice that had the gene grew larger
	C)	There was no significant difference between the mice who had the gene and those who didn’t.
	D)	The mice who were missing the gene had a higher rate of reproduction.
4	Extrapolating this study to human cells suggests:
	A)	Vaccines could be produced that target enhancing immune cells response rather than taking action on the virus itself.
	B)	Human cells don’t respond in the same way as the mice cells did so this study is very limited.
	C)	Those humans who have more of the CCL5 gene present in their bodies are less likely to become sick.
	D)	Two of the above to be true.
	E)	All of the above to be true.