Cystic fibrosis is genetic, meaning it can be passed from parent to child. What type of mutation causes cystic fibrosis?
If both parents are carriers of the defective CF gene, what is the chance that their child will have cystic fibrosis?
What type of UV light is used in tanning beds, and why is it so dangerous?
Tanning beds primarily use UVA light, which can be more concentrated than sunlight and penetrates multiple layers of the skin. This exposure can prematurely age the skin and greatly increase the risk of skin cancer; some tanning beds also emit UVB light.
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