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GarryVolchara [31]
3 years ago
6

Carriers of the sickle-cell allele (i.e. those with a heterozygous genotype) are fittest in environments with high frequencies o

f:
Biology
1 answer:
Ostrovityanka [42]3 years ago
5 0
Individuals who are heterozygous for the sickle-cell allele suffer less from the attack of malaria because a small percentage of the red blood cells are sickle-shaped. They are more resistant to malaria than individuals who have two copies of the normal haemoglobin allele. Heterozygous individuals have a better chance of surviving and reproducing in regions where malaria is prevalent since they do not fully contract the disease.
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