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It is more common for people of African descent to get sickle cell anemia. Sickle cell anemia is linked to survivors of falciparum malaria (P. falciparum), it is believed that the hemoglobin cells take on the sickle shape to give the mammal an increased survival rate.
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Who is more likely to get sickle-cell anemia?
It is more common for people of African descent to get sickle cell anemia. Sickle cell anemia is linked to survivors of falciparum malaria (P. falciparum), it is believed that the hemoglobin cells take on the sickle shape to give the mammal an increased survival rate.
When a mutation in the hemoglobin gene causes what disorder?
While technically there are more than one, the main one by far is sickle cell anemia.
Why do African and Mediterranean get sickle cell anemia more often?
Sickle cell anemia is more prevalent in African and Mediterranean populations due to the historical presence of malaria in these regions. The sickle cell trait provides a genetic advantage against malaria, as individuals with one copy of the sickle cell gene (carriers) have a reduced risk of severe malaria. This selective pressure has led to a higher frequency of the sickle cell gene in these populations. Consequently, individuals who inherit two copies of the gene (one from each parent) develop sickle cell anemia.
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.
How is the gene involved in sickle cell anemia different from the genes for pea plants' traits that Mendel studied?
One gene controlled one trait within Mendel's study, but the sickle cell anemia effects more than one trait.
How natural selection means there is more sickle cell anemia in Africa?
Sickle cell anemia is more prevalent in Africa due to natural selection's role in conferring a survival advantage against malaria. The sickle cell trait (carrying one copy of the gene) provides some protection against the disease, allowing individuals with the trait to survive and reproduce more successfully in malaria-endemic regions. As a result, the frequency of the sickle cell allele increases in these populations, leading to higher rates of sickle cell anemia. This illustrates how environmental pressures can shape genetic traits within a population.
Can you get sickle cell from your parents?
Yes, and this is the only way to get sickle cell disease or sickle cell anemia. Sickle cell (both the milder "disease" form and the more severe "anemia" form) are caused by an inherited mutation in a protein that helps form the red blood cells - the defect results in red blood cells that are shaped like crescents or sickles, which is how the disease gets its name.
The difference between sickle cell trait and sickle cell disease?
It has to do with your genitic make up. You don't have sickle cell anemia because you only have 1 of the traits on your beta hemoglobin gene. People with sickle cell anemia have two.Most of the time peolple with sickle cell trait display much milder symptoms. It is more prevolent in African Americans and woman should be monitored during pregnancy.
Can Mexican people get sickle cell anemia?
Sickle cell anemia is more common in populations from Africa, the Mediterranean, and the Middle East. It is uncommon in Mexican populations, but it is still possible for Mexican individuals to have sickle cell anemia, especially if they have ancestors from regions where the condition is more prevalent.
What population of people does sickle-cell effect more than others?
Sickle-cell anemia affects black people more than other groups. There is some indication that sickle-cell gives a survival benefit for some tropical diseases, such as the Malaria parasite.
What population of people does sickle cell effect more than others?
Sickle-cell anemia affects black people more than other groups. There is some indication that sickle-cell gives a survival benefit for some tropical diseases, such as the malaria parasite.
How is the gene involved in sickle cell anemia different from the gene for pea plant traits that Mendel studied?
One gene controlled one trait within Mendel's study, but the sickle cell anemia effects more than one trait.
