Father because you inherit traits from your mother and recessive sex linked traits from your father.
Answer:
it is known as big bang reproduction
Cells formed by mitosis are identical to each other and to the parent cell.
To be honest, since we live on Earth (assuming you do as well), Earth is the easiest planet to study. We don't know much about the other planets because we've never been to any of them. I believe that the second easiest planet to study is either Uranus or Saturn.