Are rare or common recessive deleterious alleles more rapidly reduced in frequency in a population via natural selection? Why?
Are rare or common recessive deleterious alleles more rapidly reduced in frequency in a population via natural selection? Why?
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Which of the following is/are a plausible reason why all human populations contain lethal recessive alleles? More than one answer may be correct.
Selection cannot "see" lethal recessive alleles when they are in heterozygotes. | |
If mating is random, as the frequency of a lethal recessive allele decreases, the proportion hidden in heterozygotes increases. | |
Dominant lethal alleles typically mutate quickly into recessive lethal alleles. | |
When a lethal recessive allele is rare, it can be re-created by mutation as quickly as it's being removed by selection. |