6,352
edits
Mutation: Difference between revisions
Jump to navigation
Jump to search
m
→Some mutations are good
| Line 49: | Line 49: | ||
== Some mutations are good == | == Some mutations are good == | ||
Even though the vast majority of mutations are deleterious or neutral, some mutations are good. This is how evolution works, adaptive mutations are preserved and deleterious mutations (depending on ecological context) | Even though the vast majority of mutations are deleterious or neutral, some mutations are good. This is how evolution works, adaptive mutations are preserved and deleterious mutations (depending on ecological context) are eventually purged from the gene pool. An example is the ACTN3 gene giving West African sprinters faster fast-twitch muscle fibers and therefore a faster sprint spreed. | ||
Ugliness does not necessarily worsen the gene pool as it is only weakly related to disease, though it is generally socially undesirable. However, various genetic diseases, functional and cognitive impairment do warrant concern and reduce overall population viability if maintained in the gene pool (dysgenics). Fortunately, we will possibly be able to fix diseases via gene editing in near future.<ref>https://www.npr.org/sections/health-shots/2017/08/02/540975224/scientists-precisely-edit-dna-in-human-embryos-to-fix-a-disease-gene?t=1577487765548</ref> | Ugliness does not necessarily worsen the gene pool as it is only weakly related to disease, though it is generally socially undesirable. However, various genetic diseases, functional and cognitive impairment do warrant concern and reduce overall population viability if maintained in the gene pool (dysgenics). Fortunately, we will possibly be able to fix diseases via gene editing in near future.<ref>https://www.npr.org/sections/health-shots/2017/08/02/540975224/scientists-precisely-edit-dna-in-human-embryos-to-fix-a-disease-gene?t=1577487765548</ref> | ||