Well, there was the
Star Trek: Voyager episode where a group of dinosaur-like creatures find a human (a dead Voyager crewman) and through genetic analysis conclude that he is related to them. This helps to confirm their "distant origin" hypothesis that these saurians didn't arise in this part of the galaxy but actually came from somewhere else...and it turns out that they are descended from Earth dinosaurs.
This, of course, contradicts doctrine and after great drama, the saurian scientists are given a choice: Death to the entire Voyager crew and punishment to all of the saurian scientist families or denounce the "distant origin" claim which, of course, they do.
On a more general theme of the conflict of religion/morality coming up against science/technology is
Twilight of the Golds where there is a somewhat religious couple. She is pregnant and he is a researcher in a genetic testing firm. They have developed a test that can be performed in utero to determine if the baby will be gay and it turns out that their child will most likely be gay. The mother also has a brother who is gay and is pretty much alienated from everybody else in the family. It deals with a bunch of issues such as abortion, the claim of "homosexuality is a choice" from religion, etc.
------------------
Rrhain
WWJD? JWRTFM!