The heterozygous genotype for sickle-cell anemia

The heterozygous genotype for sickle-cell anemia has little survival value for North American blacks because ( 1) the sickle-cell allele is being transmitted to the non-black population. 2) immunization programs have nearly eliminated this disease. 3) malaria is uncommon in North America

 

 

0 replies

Leave a Reply

Want to join the discussion?
Feel free to contribute!

Leave a Reply

Your email address will not be published. Required fields are marked *