Disagree, there will always be Hatred and Intolerance in the word, no matter how hard we all try, it is inevitable. It's simply human nature.
Codominance is when both alleles are expressed - one allele is not more dominant than the other.
An example of this is a cow with red and white hair, you can see both colors of hair, not just one.
D. The social context of the 1960's discouraged innovation and exploration because people were afraid of new technologies and feared being overrun by space aliens.