Answer :
Final answer:
A heterozygous genotype, as seen in Aa, denotes having two different alleles for a gene, providing resistance to malaria without developing sickle cell anemia.
Explanation:
Heterozygous genotype refers to having two different alleles for a particular gene. In the case of sickle cell anemia, the heterozygous genotype Aa indicates an individual who carries one normal hemoglobin allele and one sickle cell allele. This genotype offers resistance to malaria while not causing the severe symptoms of sickle cell anemia present in individuals with the homozygous recessive genotype.
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