How does genetics play a role in lung cancer?

I'm wondering how i can explain dna/genetics when talking about lung cancer. thanks!

Lung Cancer Nursing Considerations and Management

Nursing Considerations for Lung Cancer Patients

Preventing Lung Cancer: What You Need to Know

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Breakthroughs in Lung Cancer Research

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Understanding Lung Cancer

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Early Detection and Treatment of Lung Cancer

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Living with Lung Cancer: A Survivor’s Story

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Is the smoke in cigarettes what really will cause lung cancer?

What can you bring foodwise or giftwise to a friend with lung cancer?