The concept of heredity is that genes are not randomly passed down. Well, technically they are but we use punett squares to predict the chances of passing certain traits. Because virtually all traits that are dominant are more common than recessive ones, and because all genes are not passed in a completely random way, it is not just pure chance, but calculated chance by which we can predict the probability of what genes are passed down. Hope this helps!
A. On the bust of the Pallas
In terms of the first question, "They" would be an objective pronoun, but it should be noted that this does not have to be so. for the second, the answer is "my".
