"i do not know why the clinics save them for some time.
could you please give some basics of this science please?"

they are saved (frozen) in case couple wants to have another child. if not, they are discarded because space is limited and there is a surcharge of course... in either case, these fertilized eggs (yes they are fertilized with sperm, how else do they become embryos) are thrown away. your leader that you bow down to, bush, does not want to the government to fund this, so now korea and china and other countries will surpass US.

"sciecne is like a gun, and dharma is like the user of the gun. get it?"

yes, to not shoot, or to not use these discarded embryos, is adharma. but go side with your chrisitin fundmentalist friends...go on. to you, bush represents dharma and gandhiji represents adharma! if you need a job why don't you sign up for military and go kill the muslims so bin laden's family can get rich off that to fund more terrorist training camps for you to fight against. what a waste of a life man!