The embryos take on additional value, doctors and embryologists say, because obtaining them is so expensive and emotionally draining.
32.
But many embryologists say they do not discard embryos if the patients do not pay _ even if years go by.
33.
"The chances are they're marking their territory, " said Steen Willadsen, an Florida embryologist.
34.
In the early 1930s, Waddington and many other embryologists looked for the molecules that would induce the amphibian neural tube.
35.
The reason, the embryologist told the couple, was that only 3 percent of Cler's sperm were properly formed.
36.
A team of embryologists, laboring in a tension-filled atmosphere, has manipulated the microscopic eggs to produce an embryo.
37.
He trained as an embryologist and published a three-volume text, " Chemical Embryology, " in 1931.
38.
German embryologist Hans Spemann produced double monsters in newts experimentally by constricting the egg in the two cell stage with a hairloop.
39.
CBE paleontologist, geneticist, embryologist and philosopher who laid the foundations for systems biology, epigenetics, and evolutionary developmental biology.
40.
S�ren L�vtrup, a biochemist and embryologist from Denmark, advocated a similar hypothesis of macromutation to Goldschmidt's in 1974.
