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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 Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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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.
Transcribed Image Text: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.
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