Answer:
Dihybrid
Explanation:
A dihybrid cross explores the interaction of two traits in affecting the genotype of the offsping
The father determines if its male or female. So the father is the carrier and the allele is on the Y chromosome.
<span>It is going to depend on what you consider stable. A
diverse population would be more resistant to disease because of simple
biology. The more sources for possible resistance the better the
heterogeneous pool will be at resisting disease. You also have to take
in to consideration things like the availability of modern medicine and
the ability to be isolated during illness. </span><span>
Personally I think it has to do with the fact that many of the worlds
more diverse population centers are also many of the worlds largest
population centers which make them less prone to invasion on that basis
alone. </span>