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Talk:Counterexamples to Evolution (view source)
Revision as of 03:53, October 28, 2008
, 03:53, October 28, 2008chromosome mutations
::They can be, in the right circumstances. Take the SNP responsible for sickle cell anemia. A person homozygous for sickle cell will have a debilitating disease, but a heterozygous person is more resistant to malaria than a non-carrier and is not symptomatic for sickle cell. This is why sickle cell anemia is most prominent in ethnicities from malaria-stricken parts of the world. [[User:Corry|Corry]] 23:33, 27 October 2008 (EDT)
::They can be, in the right circumstances. Take the SNP responsible for sickle cell anemia. A person homozygous for sickle cell will have a debilitating disease, but a heterozygous person is more resistant to malaria than a non-carrier and is not symptomatic for sickle cell. This is why sickle cell anemia is most prominent in ethnicities from malaria-stricken parts of the world. [[User:Corry|Corry]] 23:33, 27 October 2008 (EDT)
:::If we were to assume that I was incorrect on mutations sometimes providing benefits, I was still correct that mates with different numbers of chromosomes can still mate successfully, provided of course that they would have been able to produce viable offspring in the first place. That part alone is enough to disprove the point. As for mutations providing benefits, aside from the Corry's example. I am not saying that all mutations are beneficial, in fact most...especially in the larger mammals (humans included) cause serious problems. However plants tend to make better use of the kinds of mutations, take the F. chiloensis or the Beach Strawberry, It has 8x the number of chromosomes compared to wild type strawberries. Because of this, it produces larger fruit with more seeds. More seeds and larger fruit being an obvious advantage regarding reproduction. --[[User:ScottA|ScottA]] 23:53, 27 October 2008 (EDT)