1.   We are also constructing cDNA libraries from early embryonic tissues and have developed a wholemount in situ hybridisation technique for localising RNA in the mouse embryo.

2.   Embryonic tissues suitable for early prenatal diagnosis are obtained by chorionic villus sampling or early amniocentesis.

3.   Another speculates that a defect in embryonic tissues causes some women to be born with endometriosis.

4.   Better to throw it away than to create a potential market for embryonic tissue the way people today buy and sell female eggs.

5.   But anti-abortion advocates, along with some religious and ethics opponents, raised a furor over federal support for something that turned embryonic tissue into a medical commodity.

6.   It did keep them from forming normal embryonic tissues, leaving them as large, yolk-filled cell masses.

7.   It would inject the eggs with embryonic tissue from birds bred to maximize meat production, at the expense of egg laying ability.

8.   Some antiabortion advocates fear the medical work gives a tacit sancion to abortion, since discarded embryonic tissue from abortions could be used in the studies.

9.   The great weight of scientific opinion, however, says adult stem cell studies are not a substitute for properly conducted research into the uses of embryonic tissue.

10.   Unless it receives other signals, the embryonic tissue that gives rise to the external genitalia will form itself into normal female structures during the first trimester.