A farmer always plants pea and wheat in the same field. Why do you think he does that?

Mixed cropping leads to improvement of fertility of soil hence increases the crop yield.the crops mixed are related symbiotically helping each other in need.it also helps during crop failure due to abnormal weather conditions as high or low rainfall etc. ultimately it is  logically and economically helpful to farmers with low income due to low yield

Explanation:

b is dominant over the allele for the white fur.