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Yes. Because of the structure of hemoglobin in a patient with sickle cell anemia, malarial parasites that attempt to infect red blood cells cause the red blood cell to burst before it can be infected, effectively starving the parasite of a host. Since the allele for sickle cell anemia is codominant with the allele for regular hemglobin, sometimes people whose parents have sickle cell can pass on their resistance to malaria to their children without passing on the entire disease for sickle cell.
What else can I help you with?
Do primates have sickle cell anemia?
That is very interesting question, indeed. Your concern for the primates needs appreciation. The answer to this question is probably positive. Sickle cell anaemia is a natural selection in malaria endemic zone. The sickle cell trait patient is genetically resistant to malarial fever. So many primates suffer from malarial fever. From this finding you can say that sickle cell anaemia should be present in primates, who live in tropical countries.
What is the advantage of being heterozygous for the sickle cell allele?
Sickle cell trait carries a lower risk of serious malarial disease, without the signs and symptoms of sickle-cell anemia.
What condition is a person with only ONE sickle cell gene and one normal hemoglobin gene more capable of surviving than someone who has no sickle cell genes?
A person with one sickle cell gene and one normal hemoglobin gene has sickle cell trait, which can provide some protection against malaria. This advantage makes them more capable of surviving in regions where malaria is prevalent compared to someone with no sickle cell genes, who would be more susceptible to severe malaria infection.
What was primarily acting to change the frequency of the sickle-cell allele in the overall U.S. population?
The absence of the selection pressure malaria. Without selection, in the form of the malarial environment, the sickle cell allele will be lost in the overall US population. Even the heterozygous condition is somewhat deleterious and, statistically without malarial selection pressure the allele will be selected out.
Why are red blood cells sickle shaped in a person with sickle cell disease?
Sickle cell is common in people from tropical areas where malaria is prevalent. Malaria can not survive on blood cells that are sickle shaped, so when populations were being killed off by malaria, those with sickle cell were surviving and passing on the sickle cell gene.
Can you catch sickle cell if you kiss someone with sickle cell?
NO, Sickle Cell Anemia is a Genetic Disorder that you inherit from your Parents. You are either born with it or not.
What is the heterozygous advantage of of people having sickle cell trait in areas where malaria is a major cause cause of death?
the sickle trait possess a resistance to the infection of malaria.
Why are most Africans resistant to malarial infection?
The sickle-cell gene is most common in those of African descent. It is curious that a gene which has the potential to be so detrimental to an organism would be so relatively common; not decreasing in frequency through the generations as scientists would expect. Research supports the theory that more people of African descent carry the sickle-cell gene because it decreases the carrier's susceptibility to malaria. In places where malaria is a bigger problem, we find a higher frequency of the sickle-cell gene, thus Africans tend to be more resistant to malaria. While scientists have in no way put this matter to rest, the data is very interesting.
What is another name for malaria?
sometimes called Salmonella paratyphi infection, is a serious contagious disease caused by a gram-negative bacterium. It is also grouped together with typhoid fever under the name enteric fever.
How does sickle-cell trait differ from sickle-cell disease?
in sickle cell trait you don't actually have the disease. you are only able to pass the disease to your kids if you marry a person with sickle cell or that also has the trait. sickle cell disease is when you actually have the disease. you can pass it to your kids if you marry someone with the trait or the disease. if you marry someone without a trait or disease then your kids will most likely have the trait.
If Natasha has normal blood cell but marries someone who has sickle cell trace What are the chances of them having a child with sickle cell?
If a person does not carry the Sickle cell trait and they marry some one with the trait. The child that comes from that relationship can never have sickle cell disease, however that child has a chance of having the sickle trait.
Do individuals who are heterozygous for sickle-cell anemia have a greater resistance to malaria?
Yes, individuals who are heterozygous for sickle-cell anemia have a greater resistance to malaria due to the presence of the sickle cell trait which makes it more difficult for the malaria parasite to survive in the red blood cells.
