3 ms·
I think you are missing the point. There is something in the Chinese genetic profile that increases the chances of a specific type of cancer. This is useful on
by HeadsUpHigh 8y ago
I think you are missing the point. There is something in the Chinese genetic profile that increases the chances of a specific type of cancer. This is useful on it's own. Just because the different "races" converged again before geographical separation was maintained long enough to make them genetically incompatible doesn't mean that some differences haven't already propagated in these populations. The increased risk of cancer is exactly a result of being a member of the specific genetic race and thus carrying said gene, not the other way around. There is clearly a causative role, even if we don't know what it is step by step.
- Emma_Goldman 8y agoI see what you're saying. But I think it presumes that ordinary racial classifications overlap with homogeneous genetic communities. Specifically, that the human race was broken up and, through the early stages of allopatric speciation, became separate groups with their own homogenous genetic makeup. But this presumes that the only evolutionary force acting upon the human race was allopatric speciation, which I take to be wrong. Even if we assume that, for instance, the 'Chinese race' was sufficiently isolated to experience allopatric speciation - which seems doubtful anyway, given the migratory cross-flows of human groups throughout pre-history - then other evolutionary forces particular to localised regions and sub-communities would means that, medically speaking, those biological communities were more significant than being 'Chinese'. Or at least that's my impression.