What's the difference between embryo and embryogeny?
Embryo
Definition:
(n.) The first rudiments of an organism, whether animal or plant
(n.) The young of an animal in the womb, or more specifically, before its parts are developed and it becomes a fetus (see Fetus).
(n.) The germ of the plant, which is inclosed in the seed and which is developed by germination.
(a.) Pertaining to an embryo; rudimentary; undeveloped; as, an embryo bud.
Example Sentences:
(1) It was found that the skeletal muscle enzyme of the chick embryo is independent of the presence of creatine and consequently is another constitutive enzyme like the creatine kinase of the early embryonic chick heart.
(2) Since 1987, it has become possible to obtain immature ova from the living animal and to let them mature, fertilize and develop into embryos capable of transplantation outside the body.
(3) In X-irradiated litters, almost invariably, the incidence of anophthalmia was higher in exencephalic than in nonexencephalic embryos and the ratio of these incidences (relative risk) decreased toward 1 with increasing dose.
(4) The effects of hormonal promotion of T24-ras oncogene-transfected rat embryo fibroblasts (REF) were compared to cotransformation of these cells with adenovirus E1A and ras.
(5) Scatchard analyses of binding data obtained with synaptosomal preparations from 17-day-old embryos revealed two T3 binding sites.
(6) In the stage 24 chick embryo, a paced increase in heart rate reduces stroke volume, presumably by rate-dependent decrease in passive filling.
(7) From the biochemical markers in follicular fluid, cyclic adenosine monophosphate has a distinct predictive value in regard to pregnancy in in vitro fertilization-embryo transfer cycles.
(8) Implantation of the mouse embryo involves the invasion of the secondary trophoblast giant cells of the ectoplacental cone (EPC) into the uterine decidua.
(9) They suggest that an endogenous retinoid could contribute to positional information in the early Xenopus embryo.
(10) A cytogenetic and anatomopathologic study of an embryo of 24 mm crown-rump length showing pure triploidy (69,XXY) is reported.
(11) The in vivo approach consisted of interspecies grafting between quail and chick embryos.
(12) Here we report direct measurements of protein kinase C (PKC) activity in uninduced ectoderm, and in neuroectoderm shortly after induction by the involuting mesoderm, in Xenopus laevis embryos.
(13) Results obtained from cumulative labeling and pulse-labeling and chase experiments with cells from late gastrulae, yolk plug-stage embryos, and neurulae showed that the 30S RNA is an intermediate in rRNA processing and is derived from 40S pre-rRNA and processed to 28S rRNA.
(14) During that time they have repeatedly demonstrated the likely existence of signalling molecules or morphogens that control the pattern of development in the embryo.
(15) Ernst Reissner studied the formation of the inner ear initially using the embryos of fowls, then the embryos of mammals, mainly cows and pigs, and to a less extent the embryos of man.
(16) The objective of this study was to examine the effects of different culture media used for maturation of bovine oocytes on in vitro embryo development following in vitro fertilization.
(17) By 3 d in the chick embryo, the first neurons detected by antibodies to Ng-CAM are located in the ventral neural tube; these precursors of motor neurons emit well-stained fibers to the periphery.
(18) None of the factors tested was found to have a statistically significant effect on embryo yield.
(19) The embryo stages were assessed visually and some were investigated histologically.
(20) Ninety semen specimens were analysed for use in an IVF-embryo transfer (ET) programme.
Embryogeny
Definition:
(n.) The production and development of an embryo.
Example Sentences:
(1) The mRNAs begin to accumulate during late embryogeny, reach maximal levels in seedling cotyledons, are not detected at significant amounts in leaves, and are distributed similarly in cotyledons and axes of seedlings.
(2) The expression of beta-conglycinin is highly regulated, being restricted to the embryo during the mid-maturation phase of embryogeny.
(3) Hatchability was not affected by irradiation during embryogeny.
(4) The sediment containing the eggs was cultivated in H2SO4 0.1N in tissue culture flasks, at 28 degrees C. The culture of embryonated eggs was determined every ten days starting from the 20th day of culture achieving around 98.0% embryogeny on the 80th day of culture.
(5) It is difficult to draw any general conclusion because of major differences in embryogeny of mice, humans, and marsupials, and uncertainties in interpreting the data from humans.
(6) We have analyzed the accumulation of the glyoxylate cycle enzymes isocitrate lyase and malate synthase in embryos and seedlings of Brassica napus L. The two enzyme activities and proteins begin to accumulate during late embryogeny, reach maximal levels in seedlings, and are not detected in young leaves of mature plants.
(7) Then the usual data on each of the muscular groups embryogeny reviewed and compared, if necessary, with recent works.
(8) Among the muscles in action in the mastication, a link appears between their precise role in this function and their embryogeny.
(9) The water and electrolyte contents of various fetal and maternal tissues were studied at the final stage of embryogeny and during prolonged pregnancy.
(10) Mortality after hatching, egg production, egg weight, fertility, hatchability of eggs produced, and reproductive performance of the progeny were not affected by irradiation during embryogeny.
(11) The results of these two experiments indicate that male quail respond to blood loss with increased adrenocortical activity and that this response is modified in male quail after irradiation with microwaves during embryogeny.
(12) Therefore, a thorough study of the distribution pattern of X-linked skin disorders in women may give us a better insight into the early embryogeny of the human integument.
(13) Lactate dehydrogenase, beta-glucuronidase, acid phosphatase, glucose and protein were not affected by microwave irradiation during embryogeny either before or after hemorrhage.
(14) Probes derived from cDNA clones of napin and cruciferin, the major storage proteins of Brassica napus, and in situ hybridization techniques were used to examine changes in the spatial and temporal distribution of storage protein messages during the course of embryogeny, with a special emphasis on the developing apical meristems.
(15) Analysis of the specific transcripts produced in dry seed nuclei indicates that the changes in gene expression patterns associated with germination are not initiated during late embryogeny.
(16) These osmotic-hormonal interactions are interpreted relative to in vivo, in situ normal embryogeny or developmental lesions such as tumors.
(17) Having studied the functioning left ovary and the atrophic right ovary of the chicken during its in ovo embryogeny, we decided to study its development in vitro.
(18) These data indicate that microwave irradiation during embryogeny in ovo affects the ability of Japanese quail to recover from an acute and voluminous hemorrhage and that these radiation effects are sex-limited and consistent with a previous report.
(19) The mesenchymal origin muscular tissues entailing some difficulties in the knowledge of certain muscles embryogeny, two methods are therefore applied: the comparison of the ontogenesis data with those of comparative anatomy and the use as a guide of the functional motor unit with which the muscle combines.
(20) These data suggest that microwave irradiation during embryogeny affects the ability of Japanese quail to recover from an acute and voluminous hemorrhage and that these radiation effects are small.