Answer:
An inherited life-threatening disorder that damages the lungs and digestive system.
Cystic fibrosis affects the cells that produce mucus, sweat and digestive juices. It causes these fluids to become thick and sticky. They then plug up tubes, ducts and passageways.
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Explanation:
Option 3
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Answer:
1. What genes control the growth of cell growth?
2. What is the purpose of this regulation?
3. What happened when the cell growth is not regulated?
Explanation: