Answer:
BIG GD
Explanation:
GANGBANGER IN THE HOUSEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
That they once were the same but due to genetic mutation, have changed
Alright if this works the same way it does with humans (i'm almost totally sure it does but just in case) the answer is: the zygote has 56 chromosomes, 28 inherited from the mother and 28 from the father.