Underlying the epiblast is the hypoblast, where the extra-embryonic tissue originates . suggesting that its presence is important for regulating the formation of a single primitive streak.
32.
Unigene's EST cDNA Tissue Abundance display and Protein Atlas shows PRP36 as having significant expression levels in the brain, embryonic tissue, eyes, intestines, kidneys, nerves, and ovaries.
33.
New therapies involving transplants of stem cells, the body's master cells from which all tissues grow, have been slowed by federal funding restrictions on experiments using embryonic tissues.
34.
The book also presents recent experimental results that examine how the same embryonic tissues or tumor cells can be coaxed into forming dramatically different structures under different environmental conditions.
35.
In contrast to eggs of other arthropods, most insect eggs are drought-resistant, because inside the maternal chorion, two additional membranes develop from embryonic tissue, the amnion and the serosa.
36.
In 1968 embryologist John Saunders, then at Marquette University in Milwaukee, set out to investigate the way digits formed from a bulge of embryonic tissue called the limb bud.
37.
Nonetheless, legal experts say the existing statutes could impede university scientists and biotechnology companies, not only because of the bans but also because some states prohibit payment for embryonic tissue.
38.
The regulation of TN-C is induced or repressed by a number of different factors that are expressed during embryonic tissue, as well as developed tissues during remodeling, injured, or neoplastic.
39.
Research using adult stem cells has drawn no ethical objections, and many opponents of experimentation on embryonic tissue say it has been rendered unnecessary by recent successes with adult-cell tissue.
40.
In such species, there is direct, intimate contact between maternal and embryonic tissue, though there also is a placental barrier to control or prevent uncontrolled exchange and the transfer of pathogens.
