What does the prevalence of the mutant sickle-cell S allele versos the normal H

Question

What does the prevalence of the mutant sickle-cell S allele versos the normal H allele and the geographic incidence of malaria suggest about the biological effects of the S allele? A. Inheriting a single mutant S allele may confer a survival and/or reproductive advantage to an individual living in an area where malaria is common. B. Inheriting the H allele may be protective against the parasite that causes malaria. C. Neither the S allele nor the H allele affects the reproductive success of individuals. D. Both A and B above E. None of the above The proteins of all living organisms are made from the same set of _____ A. 20 amino acids B. 12 carbohydrates C. 4 fatty adds D. 4 nucleotides E. 46 chromosomes Albedo is the A. absorption power of a surface. B. reflection power of a surface. C. amount of carbon dioxide present. D. distance glacier receded. E. level of sun spot activity. Which of the following is absolutely REQUIRED for the process of natural selecti

Explanation / Answer

34)A.inherting a single mutant S allele may confer a survival and / or reproductive advantage to an individual living in an area where maalaria is common.

35)A. 20 amino acids .

All proteins are made up of combinations of 20 different amino acids

36)B. reflection of a surface .

albedo is defined as the ratio of radiation reflected to the radiation incident on a surface.

37)C. there must be sudden environ mental change .

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