Question

_________________ mutations usually do not affect fitness, and ________________ mutations usually have large negative effects on fitness.

Answer 1

Neutral mutations and Random mutations

All living things experience mutation, which has three general sorts of impacts. The first type of mutations are those that are detrimental to the fitness of their host; typically, these mutations either lower survival or fertility. The second type of mutation is called "neutral," and it has little to no impact on fitness. Because the phenotypic changes that emerge from random mutations are likely to be maladaptive, it is generally accepted that random mutations will, on average, decrease an organism's fitness.

What is Mutations?

The modification of a gene's structure, resulting in a variant form that might be passed down to future generations, brought about by the deletion, insertion, or rearrangement of larger segments of chromosomes or genes.

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