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Lesson 2.3: Genetic Risk Factors | Check Your Understanding
True or false?
Physical characteristics of humans are determined by genes alone.
A. True
B. False
Bacteria and viruses that cause disease are called _____.
_____ is a fatty substance that blocks arteries and causes heart disease.
A. A gene
B. Blood cholesterol
C. A stroke
D. A polyp
True or false?
Environment influences the risk of mental illness, but genetics do not.
A. True
B. False
Which body system consists of cells and chemicals that fight infection?
A. nervous system
B. immune system
C. cardiovascular system
D. digestive system
True or false?
Some diseases are thought to be caused by more than one gene.
A. True
B. False
Critical Thinking.
What are some ways you can prevent development of genetically linked diseases that run in your family?
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