explain why most mutations in eukaryotes are recessive
Biology · High School · Wed Jan 13 2021
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Answer: It is a long-standing observation that most mutations are recessive. That is, they do not lead to visible phenotypic effects when in heterozygous combination with the wild-type allele.
The mutation is much more likely to be deactivating or inactivating than it is to be activating or to introduce a new function. Mutations in eukaryotes are recessive since dominant mutations are harmful as one copy of the affected allele makes the person get affected of the trait. Moreover, by natural selection, dominant mutations are eliminated easily.