Question

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.

Answer 1

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.

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