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sickle cell trait is caused by two recessive alleles - meaning both partns must give resessive trait DNA o their child. - sickle cell anemia dose not have a benefit - or if it dose it is out waysd by the fact that people with sickle cell have very low blood oxygen as their blood cellsare dis-formed. however, if there is only one allele- ie they have A and b alleles for sickle cell. then they are more immune to malaria. a deadly parasite passed by misquotes in tropical countries.
Wiki User
∙ 13y ago
Wiki User
∙ 12y agoIf you are a "carrier" of sickle cell disease you have one gene for sickle hemoglobin and one gene for normal hemoglobin (this is called Sickle Cell Trait). When a person with sickle cell trait or disease is infected with the malaria parasite, it enters the red blood cells, when then collapse ("Sickle"), which kills the parasite. It seems that this condition is "selected" in areas where malaria is endemic. The population without the sickle gene have a much higher risk of dying from malaria, while the group that has the sickle gene often have no symptoms.
Wiki User
∙ 12y agoWiki User
∙ 11y agoThere persons can't have malaria. Thats about the only advantage of this desease.
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What is the sickle cell trait of sickle cell anemia?
The sickle cell trait is that you dont have the whole thing you have half of it which is called the trait
Can you catch sickle cell trait from kissing?
no you can get sickle cell trait from kissing its not contagous
What is sickle cell in white people called?
Sickle Cell....... My son has been diagnosed with sickle cell trait. We are white and the doctors called it Sickle Cell Trait! hope this helps...
How common is the sickle cell trait?
Today, approximately one in 12 African Americans has sickle cell trait
Who has a sickle cell trait?
No. Many people become confused with that because the Sickle Cell trait is most common in Africa where the population is more black than any other race.
Is sickle cell anemia recessive or dominant?
Sickle cell anemia is an autosomal recessive disease. Carriers have sickle cell trait, which confers resistance to malaria.
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.
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.
What is the genotype of a man who has sickle cell trait?
rr since sickle cell is a recessive trait.
How long are you expected to live with a sickle cell trait?
Sickle cell trait should have no problems and should have a normal life expectancy
what if the father has sickle trait, does that mean the baby will have it?
If one parent has sickle cell trait and the other parent has the normal type of hemoglobin, there is a 50% (1 in 2) chance with EACH pregnancy that the baby will be born with sickle cell trait.
If sickle-cell anemia is so destructive why hasn't the sickle-cell allele been eliminated from the population?
It is important to note that sickle-cell anemia comes in two forms. The homozygous sickle-cell anemia and the heterozygous sickle-cell trait. The difference between the two is that sickle-cell anemia has a high rate death rate at a young age (20~), and the sickle-cell trait is nearly asymptomatic.In regions such as North America, sickle-cell anemia would be selected against and would eventually leave the gene pool. The sickle-cell trait on the other hand, has little effect on the fitness of the organism, and as such will remain in the gene pool.In malaria endemic regions such as sub-Sahara Africa, sickle-cell anemia provides very high levels of immunity to malaria and the sickle-cell trait provides a slightly lesser level of immunity. Both forms of sickle-cell will increase the organisms fitness and as such, it will remain in the gene pool. Further on, the sickle-cell trait has greater fitness than sickle-cell anemia, hence, the sickle-cell trait will be selected as the fittest allele.If s is the sickle-cell allele and S is a normal allele;The relative fitness in malaria endemic regions;Ss > ss > SSSickle-cell trait > Sickle-cell anemia > NormalThe relative fitness in non-malaria endemic regions;SS > Ss > ssNormal > Sickle-cell trait > Sickle-cell anemia
