pre-embryo

(redirected from pre-embryos)
Also found in: Dictionary.

pre-embryo

(prē-ĕm′brē-ō′)
n. pl. pre-embry·os
A fertilized ovum up to 14 days old, before it becomes implanted in the uterus.

pre-em′bry·on′ic (-ŏn′ĭk) adj.

pre-embryo

(prē″ ĕm′ brē-ō)
The morula and blastocyst stages produced by the division of the zygote until the formation of the embryo proper at the appearance of the primitive streak about 14 days after fertilization.
References in periodicals archive ?
See Djalleta, supra note 22, at 335 (sperm can be frozen up to ten years, pre-embryos up to 600 years).
Advances in the technology of freezing and restoring gametes (sperm or ova) and pre-embryo have had a significant impact on reproductive technology.
Wolter, Reflections on the Moral Status of the Pre-Embryo, 51 THEOLOGICAL STUDIES 603, 610-14 (1990).
While the moral status of the human pre-embryo -- frozen or not -- is murky at, best, clearly someone desires this entity and such claims are actionable.
Extending Andrew's analysis, the pre-embryos in the Davis case were not "my body" for either Mr.
If the pre-embryos are thawed and destroyed then we're happy," Bart Adams told the AP.
Wade, by stating that pre-embryos do not "enjoy protection as `persons' under federal law").
A summary of the findings indicates that respondents were interested in more information about the type of research pre-embryos would be used for (82%), felt the government should play a role in pre-embryo research (58%), believed that unused pre-embryos should be used to further medical science, if possible (74%), and would want to designate how their pre-embryos would be used for research (78%).
The ethical questions raised relate to research use of pre-embryos from the IVF process that would otherwise be disposed of The authors did not directly address the issue of deliberate formation of pre-embryos for research purposes.
is a father and is capable of having other children, his right to procreate is not lost if he is denied the opportunity to use or donate the pre-embryos," the court ruled, according to Reuters, "whereas if the pre-embryos are successfully im-planted, J.
47) The lower court held that the pre-embryos were "children, in vitro" and awarded custody of them to the mother.
The following experiments are considered ethically unacceptable: genetic therapy on pre-embryos, cloning of embryos by cell-splicing, formation of chimeras and using animals as surrogates.