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What is the chance that any child will have the disease if two parent who are carriers of cystic fibrosis?
Let's do a Punnit Square. T T T TT TT t Tt Tt T is normal, and the little "t" is the recessive gene (which is being carried by one parent). Since one parent is recessive, you can see that there's a 50% chance that the offspring will have the recessive gene as well. However, note that without any straight "tt" result, there is a 0% chance that the offspring can express the Tay Sachs disorder.
this is a trickey one to explain
either the child has
one non cf gene (from the mother) + one non cf gene (from the father) = a non carrier child (a child that doesnt carry the cf gene)
OR
one non cf gene (from the mother) + one cf gene (from the father) = a carrier child (a child that carry's the cf gene but doesnt have cf)
OR
one cf gene (from the mother) + one non cf gene (from the father) = a carrier child (a child that carry's the cf gene but doesnt have cf)
OR
one cf gene (from the mother) + one cf gene (from the father) = a cf child (a child that carry's both copies of the cf gene and does have cf)
so to answer your question there is a 1 in 3 chance
The chances are 1/4 for a child having the disease, 1/2 for a child being a carrier, and 1/4 for a child neither having the disease or being a carrier.
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What does heterozygous have to do with cystic fibrosis?
Individuals with cystic fibrosis have a mutation in the CFTR gene. Being heterozygous for the mutant CFTR gene means having one normal and one mutant copy of the gene, resulting in a carrier state. Carriers are typically unaffected by cystic fibrosis but can pass the mutant gene on to their offspring.
What percentage of Caucasian Americans are carriers of the Cystic Fibrosis?
Approximately 1 in 31 Caucasian Americans are carriers of the cystic fibrosis gene, which equates to around 3.2% of the population.
What are is the percentages of a child not having cystic fibrosis with parents who both have the trait?
If both parents are carriers of the cystic fibrosis gene, each child has a 25% chance of inheriting two copies of the gene and having cystic fibrosis, a 50% chance of being a carrier like the parents, and a 25% chance of not inheriting any copies of the gene. Therefore, the percentage of a child not having cystic fibrosis with carrier parents is 25%.
What is a punnett square for cystic fibrosis?
A Punnett square for cystic fibrosis would involve crossing two parents who are carriers of the recessive allele for the disease (denoted as "cf"). The square would show the probability of having a child with cystic fibrosis (25%), a carrier (50%), or unaffected by the disease (25%). Each parent would have a genotype of "Cf" (carrier) for the Punnett square.
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?
The probability of a child having cystic fibrosis in this scenario is 50%. If one parent is homozygous dominant (no cystic fibrosis allele) and the other is a carrier (heterozygous), there is a 50% chance of passing on the cystic fibrosis allele to their child, resulting in the child having 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.
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.
To be a cystic fibrosis carrier do your parents have to have a cystics fibrosis gene?
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.
A couple who are both carriers of the gene for cystic fibrosis have two children who have cystic fibrosis What is the probability that their next child will be phenotypically normal?
If both parents are carriers on cystic fibrosis, just because two children may have the disease it doesn't mean that say,a further 3 children in future will be "normal". Inheriting genes is like a lottery. I can say though that because cystic fibrosis is recessive, every offspring born under carriers will always have a 75% chance of being phenotypically normal.
Is cystic fibrosis a viral disease?
No. Cystic fibrosis is a genetic disease.
Is this true Cystic fibrosis is 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 cystic fibrosis infectious or nonifectious?
Cystic fibrosis is not an infectious disease, it is a genetic disease.
How do you start a topic sentence if its about Cystic fibrosis?
What is cystic fibrosis? Cystic fibrosis is a life threatening disease.
Is cystic fibrosis common?
Cystic fibrosis is the most common life threatening disease in the UKOne in 25 people have the cystic fibrosis gene in them (but may not have the disease). Most people aren't even aware that they carry the gene. If two people who have the gene reproduce, the odds that they have a child with cystic fibrosis is 1 in 4. The chance that they will have a child who carries the gene but doesn't have the disease is 2 in 4 (half). The chance that they have a child who does not have the disease or carry the gene is 1 in 4.
Is cystic fibrosis caused by a virus?
No. Cystic fibrosis is a genetic disease.
What is the most common fatal genetic disease in the United states?
cystic fibrosis (:cystic fibrosis :)cystic fibrosis ^-^
