Condition

... there are very common specific gene faults. Ashkenazi Jewish women tend to have one of 3 very particular gene mutations http://ghr.nlm.nih.gov/condition=breastcancer Hereditary cancers are those associated with inherited gene mutations. Hereditary breast cancers tend to occur earlier in life ...

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... individuals, so what's the problem? And even of those genetically ill children, most are not affected until at old age, can cope with their condition well enough to have children, or do not express the disease at all (common with multifactorial diseases). I don't believe you are as thick ...

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... from the gene pool. On a long run they just aren't deleterious enough to disappear completely - if viewed on a species level. Finally, some of the conditions are caused by point mutations, deletions, chromosomal translocation or invertion, and as such are results of random events on a genomic scale. ...

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... exposed to more environmental pollution nowadays, but it has nothing to do with natural selection not working. If breast cancer or any other such condition starts wiping out fertile women, for example, you will for sure see that trait becoming more rare, by means of natural selection. That was ...

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... there are very common specific gene faults. Ashkenazi Jewish women tend to have one of 3 very particular gene mutations” http://ghr.nlm.nih.gov/condition=breastcancer “Hereditary cancers are those associated with inherited gene mutations. Hereditary breast cancers tend to occur earlier in life ...

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