is discarding an imperfect embryo immoral?

it depends on your definition of "imperfect" and your definition of "immoral" some would say that it defiantly is, it would be killing a human being, (usually those are religious people who say that), BUT some might make the argument that it would end a life of suffering for the "imperfect" embryo, i personally believe its up to the parents to decide if the embryo is "imperfect". This all basically boils down to abortion and that whole argument.

Yes.

No because it would of turned in to a deformed baby

Not necessarily. Nature does it all the time, through miscarriages.

no

it it helps us correct god's terrible terrible mistakes

I guess it depends on who you ask.

No god has mentioned it one way or the other.

"That which you do for the least of these, you do for Me"

--Jesus Christ

Hope that helps.

absolutely