Answer to Question #165595 in Evolution for Shahid ali

Question

Most new mutations are detrimental, yet rare beneficial mutations can be adaptive. With regard to the fate of new mutations, discuss whether you think it is more important for natural selection to select against detrimental alleles or to select in favor of beneficial ones. Which do you think is more significant in human populations?

Answer 1

The human population's significance is that a new mutation would come with advantages and disadvantages. The need for natural selection to select the only favourable mutations at the expense of the detrimental ones because the population with beneficial mutations is likely to survive better and give rise to new individuals as opposed to the detrimental effects of the mutation, which normally disadvantage the population