Mr. Mendal was a expert in genetics and was trying to figure out how alleles worked. He used plants for this and tried to mix different colors. After the experiments he successfully found that if you mix the genetics of one thing with another there is a chance to mix.
Depends what era you mean right now we're sort of at peace with them but we used to be in a war against them so it all depends on time.
One of the major outcomes of Polk’s expansionist policies in the Oregon Territory was that massive numbers of settlers rushed to the area in the hopes of starting new lives--leading to a great deal of political disorder.
It lowered the economy thus causing the great depression