Yes, it's possible. Only if you have a DS. With a DSi, it's not possible. The DSi does not have the GBA slot.
You can't trade between game boy games on a DS.
no you can only trade using a game boy to a game boy with the link cable.
No. The connector doesn't fit into the DS.
No.
no you can't,it tells you when you trade from the sp to ds. You can only trade pokemon from your sp to ds and once traded to the ds can not be returned to your sp
from ds game, yes from the game boy game, no
no because one is for game boy and one is for DS
plug in the game boy game and use the ds wire less thing to play aganst any 1 with another ds
No. The ds isn't desinged to connect to game boys. game boys are infared and ds uses a radio related signal
Yes, you can. It's called Migrating.
You can't. If you migrate Pokemon from the gameboy to the DS, it notes that "After any Pokemon are placed in your DS game, you cannot return ANY Pokemon to your GBA Game". I have tried to do it many different ways, but to no avail.
no. once you migrate a Pokemon to a DS game, it's stuck there unless you trade it to another DS game.