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10. A woman and a man are both carriers for cystic fibrosis. What will be the...

10. A woman and a man are both carriers for cystic fibrosis. What will be the probable phenotypes of their children and the probability of each phenotype occurring? Pick one.

a. 100% of the children will probably be healthy.

b. 100% of the children will probably have the disease.

c. 50% of the children will probably be healthy, and 50% will have the disease .

d. 75% of the children will probably be healthy, and 25% will have the disease.

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Answer #1

Cystic Fibrosis is a genetic disease and severely affects the lungs, liver, intestine, and pancreas. For those who have cystic fibrosis, their mucus becomes thick and it plugs many organs in the body and causes various symptoms depending on the organ affected.

A family history of cystic fibrosis is the risk of acquiring the disease.

It can be diagnosed through a sweat chloride test, chest x-ray, CT scan, pulmonary function tests.

The treatment includes Antibiotics, sputum thinning medications, and surgery.

A woman and a man are both carriers for cystic fibrosis. The probable phenotypes of their children and the probability of each phenotype occurring are:-

a. 100% of the children will probably be healthy.WRONG

b. 100% of the children will probably have the disease: WRONG.

c. 50% of the children will probably be healthy, and 50% will have the disease: WRONG

d. 75% of the children will probably be healthy, and 25% will have the disease:CORRECT: If both the parents are carriers, then 25% of the children will have the disease.

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