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To be a cystic fibrosis carrier do your parents have to have a cystics fibrosis gene?
Wiki User
∙ 7y ago
Yes, since the disease is a recessive inherted trait BOTH parents must carry the gene but will not have the disease itself. Approximately 30,000 people in the United States have cystic fibrosis.
An additional ten million more-or about one in every 31 Americans-are carriers of the defective CF gene, but do not have the disease. The disease is most common in Caucasians, but it can affect all races.
Wiki User
∙ 7y ago
Wiki User
∙ 15y agoNo. You can be a carrier of the CF gene and be healthy. If you have Cystic Fibrosis it would more than likely show in early childhood. Both your parents would have to be a carrier of the gene for you to be born with Cystic Fibrosis. When two carriers of the CF gene parent a child together there is a 1 in 4 chance of the child being born with Cystic Fibrosis.
no because you don't have the other gene.
Wiki User
∙ 11y agoNo, there is no chance. You will pass the cystic fibrosis trait onto any children you have. They'll be carriers, but won't actually HAVE the disease unless your partner is also a carrier.
Anyway, back to your question. A carrier of cystic fibrosis can't all of a sudden get the disease. You will NEVER have cystic fibrosis.
Wiki User
∙ 14y agoBOTH!
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Is cystics fibrosis is caused by a mutation that is the dominant alle of a gene?
No, cystic fibrosis is an autosomal recessive disorder.
An individual heterozygous for cystic fibrosis?
Is a carrier of cystic fibrosis
What is the genotype of an individual that is not affected with cystic fibrosis?
Let's call the gene "C." Capital C means no cystic fibrosis; lower c means cystic fibrosis, since it is a recessive gene. CC is a person who does not have cystic fibrosis and also is not a carrier. Cc indicated a carrier. cc shows a person with cystic fibrosis. In order for a child to have cystic fibrosis, its parents must be: 1. cc and cc (both have cystic fibrosis, so every child will as well.) 2. Cc and Cc (both carriers; 25% chance of having a child with cystic fibrosis) 3. Cc and cc (one parent is a carrier and one has cystic fibrosis; there is a 50% chance that the children will have cystic fibrosis.)
What is the probability of a child having cystic fibrosis if one of her parents was homozygous dominant and the other was a carrier for cystic fibrosis?
Assuming that each parent is a carrier for cystic fibrosis (has the genotype Ff), the probability that their second child will develop cystic fibrosis is one fourth. The probability doesn't change with the number of children they have. For each pregnancy, the chance that the child will have cystic fibrosis (have the genotype ff) is exactly the same.
A husband and wife have a son with cystic fibrosis Their second child a daughter does not Prepare a pedigree for this family?
To have cystic fibrosis both parents have to be a carrier. Each parent passes on one of their genes to their children; they each have one healthy and one cystic fibrosis gene. The child with cystic fibrosis receives a cystic fibrosis gene from each parent. The other child has at least one healthy gene if she does not have cystic fibrosis, though she could be a carrier. hope it would help
What is the probability of two healthy people where one is a carrier being parents to a child born with cystic fibrosis?
If only one person is a carrier of cystic fibrosis than there is no chance of having a child with it. Both parents have to be carriers and even then there is only a 25% chance. If only one carries than there is a 50% chance that their children will carry but will not have cystic fibrosis.
Is it possible for a mother to have two kids with different father be born with cystic fibrosis?
Depends. If your mother has cystic fibrosis and your father is a carrier, there is a 50% chance that any of their children will have cystic fibrosis. If the father is not a carrier, no children will have cystic fibrosis, but they will all be carriers.
Do you need one or two parents to inherit cystic fibrosis?
you need two parents to get it but one parent to become a carrier. You need two parents with one of the alleles to inherit it but if you have one parent with the allele you might be a carrier. If you have two parents with the allele it does not mean that you will definitely have it. This is because the allele for cystic fibrosis is recessive.
What are the chances of a normal person and a carrier for cystic fibrosis have a kid with cystic fibrosis?
Zero. Cystic fibrosis is an autosomal recessive disease. This means that both parents must carry a mutated gene and have a 1 in 4 (25%) chance of having a child with CF.
How do you got cystic fibrosis?
Cystic Fibrosis is a genetic disorder, 2 parents have a CF gene, if their offspring inherits that trait they will have Cystic Fibrosis.
Is cystic fibrosis caused by a pathogen?
No, cystic fibrosis is a genetic condition. Both parents carry the gene.
What must be true of a person with cystic fibrosis?
Both parents had at least one allele for cystic fibrosis.
