3 ms·
A disease could even wipe out a population from a wide variety of ancestors. The thing that matters if any of the ancestors has encountered a type of this disea
by aequitas 7y ago
A disease could even wipe out a population from a wide variety of ancestors. The thing that matters if any of the ancestors has encountered a type of this disease before and has found a way to be resilient for it (and pass it on into its genes).
- Retric 7y agoGenetic diversity direcrly correlated with better odds that a subset of the population will be resistant to the disease. The subset of people with increased HIV resistance for example did not develop the trait in response to HIV, they where lucky enough to have it before the disease showed up.