Malaria is caused by Plasmodium falciparum,a non-motile protist that contains a cluster of microtubules at one end of the cell.Once injected into the blood stream,these microtubules are used to attach to red blood cells.In areas of the world where malaria is endemic people have a relatively high incidence of the allele for:

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People with sickle cell trait (one copy of the sickle cell allele) are less susceptible to severe malaria because the deformed red blood cells caused by sickle cell trait make it more difficult for the malaria parasite to attach and multiply within the cells. Therefore, in areas where malaria is endemic, there is a higher frequency of sickle cell allele carriers. Blue eyes, cystic fibrosis, mental retardation and hemophilia are not known to have any correlation with susceptibility to malaria.

Malaria Is Caused by Plasmodium Falciparum,a Non-Motile Protist That Contains