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They are caused by the genes that we inherit from our parents. Genes govern how our body is run. Cystic fibrosis is caused by a recessive alle. This means that both parents must be carriers of the alle responsible for cystic fibrosis. The parents don't have to have the condition themselves; they can be just carriers of the one alle that makes up the condition.

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Q: Why do inherited diseases like hemophilia and cystic fibrosis occur?
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Related questions

What other diseases are caused by cystic fibrosis?

Cystic fribrosis is an inherited disease of the secretory glands, including the glands which produce sweat and mucus.


What are two examples of cystic fibrosis and hemophilia?

genetic disorder


What are two genetic diseases besides Down syndrome?

Hemophilia Sickle-Cell Anemia Cystic Fibrosis for a fuller list look in the related link below.


What diseases does cystic fibrosis lead to?

gingeritus


What is an inherited disease that leads to airway obstruction?

Cystic fibrosis


What is an inherited disease of the mucus and sweat glands?

cystic fibrosis


How disorder is inherited cystic fibrosis?

Cystic Fibrosis, is a recessive disease (meaning that both parents must be carriers of the cystic fibrosis gene, for the offspring to have a chance of being born with it). A child has a 25% chance (1/4) of being born with Cystic Fibrosis.


What diseases affect the repiratory system?

Cystic Fibrosis


A person who has inherited the autosomal recessive disorder called?

Cystic Fibrosis


Which inherited disease is caused by a faulty ion channel?

Cystic Fibrosis


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.


What is an example of a genetic disorder resulting from a mutuation?

-Cystic Fibrosis -Hemophilia -Tay-Sachs disease