This mutation does have a benefit where it provides protection against Malaria (a mosquito-born parasitic disease). Those that are heterozygotes for sickle-cell anemia also have protection without the negative consequences of sickle-cell anemia. By researching online, find examples of mutations that resulted in a positive effect in human beings and describe it in the discussion.

What are some examples of positive mutations?

These beneficial mutations include things like lactose tolerance, rich color vision and, in some, a resistance to HIV. Beneficial mutations can confer an advantage to the organism possessing them and, over time, these mutations can spread throughout a population.

Mutations have occurred in bacteria that allow the bacteria to survive in the presence of antibiotic drugs, leading to the evolution of antibiotic-resistant strains of bacteria.

Hope that helps. x

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