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Why are sex-linked diseases more likely to affect sons of female carriers?
The son would automatically get the Y chromosome from the father. The son's X chromosome has to come from his mother. Females are XX, so he has a fifty-fifty chance of receiving the disease carrying gene. If he receives the disease carrying gene he will have the disease, if he doesn't then he will neither have the disease nor be a carrier. A daughter has to receive one X chromosome from her father and one from her mother. If the father doesn't have the disease, then the daughter cannot have it. If the mother is a carrier, then she has a fifty-fifty chance of being a carrier.
How can you stay healthy from hemophilia?
Hemophilia almost always affects boys. Why? Because the disease is an X-linked genetic disorder, passed from mother to son. Boys get an X chromosome (say: kro-muh-soam) from their mother and a Y chromosome from their father. If the mother carries the gene for hemophilia on one of her X chromosomes (girls have two X chromosomes), each of her sons will have a 50% chance of having hemophilia.A mother who is a carrier also has a 50% chance of giving the faulty X chromosome to her daughter. That does not give the daughter the hemophilia disease, but it does result in the daughter becoming a hemophilia carrier. So it's possible one of her sons someday could have the disease.
An individual who has one copy of a recessive autosomal allele that causes disease in the homozygous condition?
They are a carrier of the disease but do not show any symptoms because they have one normal allele that can compensate for the recessive disease-causing allele. If they have children with a partner who is also a carrier, there is a chance their offspring may inherit two copies of the disease-causing allele and develop the disease.
Sex-linked diseases are more likely to affect sons of female carriers because why?
The son would automatically get the Y chromosome from the father. The son's X chromosome has to come from his mother. Females are XX, so he has a fifty-fifty chance of receiving the disease carrying gene. If he receives the disease carrying gene he will have the disease, if he doesn't then he will neither have the disease nor be a carrier. A daughter has to receive one X chromosome from her father and one from her mother. If the father doesn't have the disease, then the daughter cannot have it. If the mother is a carrier, then she has a fifty-fifty chance of being a carrier.
Can you be a carrier to bipolar disease?
Bipolar Disorder is not a disease - you cannot catch it or carry it or give it to someone else. There does seem to be a genetic trait that you inherit, so that if your ancestors were bipolar, you will have a bigger chance of having it yourself, but it is a chance and not a certainty.
Is fibrosis preventable?
No, this is an inherited disease. If you are concerned about having a child with cf you can get genetic testing to see if you and your partner are carriers of the gene. If you and your partner are carriers - 25% chance If one of you has CF and the other is a carrier - 50% chance If you both have CF - baby will have CF If neither partner is a carrier - 0% chance
Is cystic fibrosis preventable?
No, this is an inherited disease. If you are concerned about having a child with cf you can get genetic testing to see if you and your partner are carriers of the gene. If you and your partner are carriers - 25% chance If one of you has CF and the other is a carrier - 50% chance If you both have CF - baby will have CF If neither partner is a carrier - 0% chance
What type of genetic disease is Refsum?
Refsum disease is inherited as an autosomal recessive disorder, which means that two unaffected carrier parents have a 25% chance of having an affected child in every pregnancy.
Could there ever be a girl that would have ALD?
First of all why is this in Justin Bieber? Anyways, yes, it is possible for a girl to have ALD. Originally the disease only affected boys, but because of new treatments these boys are living into puberty. This means that they could possibly impregnate a female carrier of ALD. If they were to have a daughter, then their daughter would have a 50% chance of having ALD.
What are the odds of offspring having a sex linked disorder if mother is carrier?
The odds depend on the specific sex-linked disorder. For carrier mothers of an X-linked recessive disorder, there is a 50% chance of passing the affected gene to a son (who would be affected) and a 50% chance of passing the gene to a daughter (who would be a carrier). For X-linked dominant disorders, there is a 50% chance of passing the gene to both sons and daughters.
If the father has sickle cell trait and the mother doesnt will their children have sickle cell trait?
No. The trait that causes sickle cell anemia is a recessive trait, which means that if both parents have the trait, there is a 1/4 chance their child will have it. The child can be a carrier however and not display symptoms, but there is no way for a child to get sickle cell from parents that don't have the gene.
What is the chance that their child will be a carrier of the disease if both parents suffer from the disease?
If they are expressing the trait, 100%, as their genotypes would be, rr X rr If they both carry the trait and it is dominated, Rr X Rr, then the probability would be, 25% of their child expressing the trait.
