Tirohia te whiti i raro nei, ka whakautu i te pātai i muri mai i roto i te reo ano o te whiti: Passage: Mutations alter an organism's genotype and occasionally this causes different phenotypes to appear. Most mutations have little effect on an organism's phenotype, health, or reproductive fitness. Mutations that do have an effect are usually detrimental, but occasionally some can be beneficial. Studies in the fly Drosophila melanogaster suggest that if a mutation changes a protein produced by a gene, about 70 per cent of these mutations will be harmful with the remainder being either neutral or weakly beneficial. Pātai: He aha te mea e puta ke ana i etahi wa ka puta ana nga nekehanga?
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