Use dumb laguage for those of us who DONT have degrees in genetics!
I think i got the gist of the last two questions, but i stop trying for the others. for (4) you ask the value of comparing the two species' genes. Who decides wether or not they are two species? That we have concluded that they are related proves the original point and comparing for any closer resembalances is futile when we have agreed they are essentially fruits from the same tree (no pun intended)
-I believe in God, I just call it Nature
-One man with an imaginary friend is insane. a Million men with an imaginary friend is a religion.
-People must often be reminded that the bible did not arrive as a fax from heaven; it was written by men.
-Religion is the opiate of the masses