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Q: Why are individuals who are heterozygous for the cystic fibrosis allele inaffected by the disease?
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Individuals heterozygous for sickle-cell anemia appear normal and are resistant to what disease?

malaria


Is cystic fibrosis a viral disease?

No. Cystic fibrosis is a genetic disease.


What types of disease is cystic fibrosis?

Cystic fibrosis is an autosomal recessive genetic disease. A+ neuromuscular disease


Is this true Cystic fibrosis is a viral disease?

No. Cystic fibrosis is a genetic disease.


What does heterozygous have to do with cystic fibrosis?

people who are heterozygous for cystic fibrosis are not directly affected by the disease (although there is some evidence they have more chance of getting Asama) however they do still carry the gene for CF (they are carriers) this means if they have kids with another carrier they have a 25% chance of having a CF positive child (out of four one non effected, two carriers, and one diseased)


Is cystic fibrosis infectious or nonifectious?

Cystic fibrosis is not an infectious disease, it is a genetic disease.


Why are individuals with genotype AA prone to malaria?

They do not carry the sickle cell allele, a. Individuals that are heterozygous have the advantage of being more resistant to malaria than homozygous dominant individuals, but are not affected by the disease.


Is cystic fibrosis an autosomal disease?

Yes, cystic fibrosis is an autosomal recessive disease.


Why can Cystic fibrosis be inherited even if neither parent has the disease?

Cystic Fibrosis is an example of a disease inherited as an autosomal recessive genetic disorder. Both parents of a baby who has Cystic Fibrosis have one abnormal recessive gene and one normal dominant gene and are therefore, Cystic Fibrosis carriers. Carriers are said to be heterozygous because they contain one normal copy of the gene and one abnormal copy. A baby who inherits cystic fibrosis has inherited the abnormal gene from both parents and is therefore said to be homozygous recessive.


Is cystic fibrosis caused by a virus?

No. Cystic fibrosis is a genetic disease.


What type of disease is cystic fibrosis?

Neuromuscular disease


How do you start a topic sentence if its about Cystic fibrosis?

What is cystic fibrosis? Cystic fibrosis is a life threatening disease.