Cystic fibrosis is an autosomal recessive disorder caused by a defective gene that causes a thick buildup of mucus in and around the lungs. The increased mucous makes it very difficult to breathe. The mucus also traps bacteria in the lungs which can lead to upper respiratory infections and lung damage. People who have cystic fibrosis will die if not treated. For a person to have cystic fibrosis they must inherit the defective gene from both parents. Alice and Matt are both heterozygous for cystic fibrosis. They want to have children but are concerned they might each pass the defective gene to their children. What is the probability their first-born child will have cystic fibrosis? There is a 0% chance their child will be born with cystic fibrosis. There is a 25% chance their child will be born with cystic fibrosis. There is a 50% chance their child will be born with cystic fibrosis. There is a 100% chance their child will be born with cystic fibrosis.

Cystic fibrosis is an autosomal recessive disorder caused by a defective gene that causes a thick buildup of mucus in and around the lungs. The increased mucous makes it very difficult to breathe. The mucus also traps bacteria in the lungs which can lead to upper respiratory infections and lung damage. People who have cystic fibrosis will die if not treated. For a person to have cystic fibrosis they must inherit the defective gene from both parents. Alice and Matt are both heterozygous for cystic fibrosis. They want to have children but are concerned they might each pass the defective gene to their children. What is the probability their first-born child will have cystic fibrosis? There is a 0% chance their child will be born with cystic fibrosis. There is a 25% chance their child will be born with cystic fibrosis. There is a 50% chance their child will be born with cystic fibrosis. There is a 100% chance their child will be born with cystic fibrosis.

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter12: Genes And Cancer

Section: Chapter Questions

Problem 12QP

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