1 Embryos grow by cell division .

2 Many people object to experimentation on embryos.

3 Two or three embryos are implanted into the woman's body.

4 Experiments to try to clone human embryos have met with hostility from some sections of the public.

5 The embryos were tested to determine their sex prior to implantation.

6 For older embryos, 100% serum is advisable.

7 But all embryos grow by cell division.

8 Control injections with preimmune serum produced normal embryos.

9 Right-to-life advocates worry that embryos will be wasted or discarded in attempts to produce a successful clone.

10 Do you approve of doctors using human embryos for research?

11 Frozen embryos of kudu antelope have been transferred into the wombs of the more common eland, and born successfully.

12 We also produced some embryos when their cells were in G2 by use of yet another agent, cycloheximide.

13 For the embryos which are implanted after screening have not been genetically modified in any way.

14 Yet these embryos were precisely the kind that Illmensee and Hoppe said had sometimes survived to become adult mice.

15 Therefore, careful staging of embryos is critical to the interpretation of any experiment.

16 Four embryos failed to take hold in Lisa's womb, but with the fifth one, she became pregnant.

17 Frozen calf embryos have since played a significant part in agriculture and even in conservation.

18 The embryos that became Megan and Morag were produced in February 1995, and they were born in August 1995.

19 Embryos have their own logic and all too often eschew tidiness; there is an element of all three mechanisms involved.

20 Some troubling questions remain about the legal status of frozen embryos.

21 The stem cells at the heart of the matter are to be found in human embryos a few days old.

22 Thus I am not in principle against the idea of research into embryos.

23 Because transplanted quail cells will behave normally in chick embryos, she realized she had an invaluable natural marker.

24 A more ideal marker would be one which labelled an entire population within intact viable embryos without disrupting their integrity.

25 The new research should also help to avoid freezing and storing excess embryos, she says.

26 Driesch and the early Spemann created clones merely by splitting very young embryos, to give identical twins or quads.

27 Accompanying the astronauts on the flight are a dozen rats, 36 fish embryos and 20 loblolly pine seedlings.

28 The larger ones lay larger capsules from which larger embryos emerge and grow faster.

29 Changes in the diurnal cycle allow different developmental stages of embryos to be available during normal working hours.

30 It could, for example, challenge the absolute opposition by anti-abortionists to research on human eggs or early embryos.

1 Embryos grow by cell division .

31 Oct-11 mRNA was detected in the adult thymus and testes and in 14.5 day p.c. embryos.

32 Male embryos form in the right-hand side of the womb, females in the left.

33 A third group act as temporary recipients, incubating the newly reconstructed embryos within their oviducts until they reach the blastocyst stage.

34 The following Tuesday morning the embryos are recovered from the temporary recipients.

35 And behold: both turned into complete embryos,() albeit smaller than normal.

36 Remember the Barbasol can full of frozen embryos, lost in the rainy mire?

37 Those scenes now include everything from human embryos, eclipses, insects and seed pods to comets, hands and candles.

38 Primitive streak stage embryos can also be manipulated using a dissecting microscope but the lower resolution makes such manipulations less precise.

39 Instead, he had simply made new embryos by nuclear transfer.

40 Geneticists normally don't know how genes exert their effects on embryos.

41 When researchers tried to mimic the results on other animals, such as chick embryos, it did not have the same effect.

42 So then Hans Spemann sought to re-enact the principle that Loeb had demonstrated, this time with his favourite salamander embryos.

43 Injection of InsP 3 can trigger breakdown of the nuclear envelope in sea urchin embryos.

44 Surprisingly, cells that will form the gut are on the outside surface of many early embryos.

45 The government has banned all scientific research using human embryos.

46 FIG. 3 a, Localized cell death in antibody-injected embryos at 27-28h of development.

47 Now that scientists have access to human embryos, the question of genetic engineering arises.

47 Wish you can benefit from our online sentence dictionary and make progress day by day!

48 In the near future however scientists will be able to graft new genes into human eggs and embryos.

49 Genomecenter officials investigated, and found that Hughes was using government resources to perform genetic studies on test-tube embryos.

50 From quarter embryos to giant embryos, formed by fusing two eggs together, normal larvae emerge.

51 Most directly relevant in this context, however, were Spemann's experiments with two-cell salamander embryos.

52 Six years ago Congress banned assistance for any form of research that involved creating or destroying human embryos.

53 Methods for synchronizing such embryos and their component cells are dealt with in Sections 3.1 and 3.2.

54 However, stem cells are generally taken from embryos created and routinely discarded all the time in fertility clinics.

55 The cell cycle at conception and in young embryos A new life begins with the fusion of sperm and egg.

56 In 1984, the survivors were all females and although they laid capsules, no embryos hatched.

57 Whatever the circumstances, it is standard practice in embryo transfer to introduce several embryos at a time.

58 The unfertilised egg cell began to divide to produce embryos that sometimes developed well.

59 This technique involves nudging two or more zona-free 8- to 16-cell embryos together in culture until they stick together.

60 This system allows direct comparison of contralateral limbs from a given embryo, controlling for variability among embryos and culture conditions.

61 In this way cohorts of embryos can be gathered which are synchronized to a particular developmental transition.

62 The respective fates awaiting the two groups of embryos could not be more dissimilar.

63 Both sides come together in their opposition to the cloning of human embryos, and object to commercial control over the process.

64 It is quite convenient to simplify the problem, and instead of thinking about sea-urchin or mouse embryos, to think about flags.

65 He observed that his ears, made almost transparent by the sunlight, closely resembled a pair of human embryos.

66 So now they fused karyoplasts taken from two-cell embryos with enucleated zygotes.

67 Embryos are organized so that interactions between cells occur on a small scale.

68 He then shook four-cell urchin embryos apart, and produced four complete embryos.

69 A quite different way of creating a chimaera is to fuse two early mouse embryos.

70 Animals are preserved as frozen embryos or as sperm freeze-dried to a powder and brought back to life.

71 This would explain why they are less able to support development in the embryos that are derived from them.

72 The extent of cell death varied between embryos and between the two sides of the neural tube in individual embryos.

73 But they were able to add transformed cells to existing embryos.

74 This might explain why discrepancies have emerged between patient records and stored embryos.

75 They will choose a shortlist of 200, who will be implanted with 10 cloned embryos.

76 The work was conducted on genetic material retrieved from embryos, not on embryos themselves.

77 Wherever possible such parameters should be compared with those of embryos of the same age recovered in vivo.

78 Nuclei could be successfully transferred between embryos that were in the same developmental domain(), but not between embryos in different domains.

79 The fetal membranes from older embryos are also best handled initially as solid tissue because of difficulties in their mechanical disaggregation.

80 Was it overlooked because it demonstrates that insights into genetic disorders can be gained without use of human embryos?

81 In our experiments with Megan and Morag and Dolly, we placed two young embryos into each receiving ewe.

82 Despite heroic efforts by the scientists, these virgin-born turkeys rarely progressed beyond the stage of simple embryos.

83 But inherent in the diagnostic procedure is a presumption that defective embryos will be discarded.

84 This problem is also seen with embryos produced by other technologies that require embryos to be cultured in test tubes before implantation.

85 The simplest two-instrument cell injection technique for both primitive streak stage and for early somite stage embryos will be described.

86 What would happen if they transferred nuclei from two-cell embryos into enucleated cytoplasts taken from two-cell embryos?

87 But it is also possible to split young embryos artificially, and again produce whole animals from the individual cells.

88 That might do away with the need for embryos.

89 Both types of rice embryos have dimorphic cotyledons.

90 What recorded them were embryos of angiosperm and gymnosperm.

91 To analyze the relationships between the morphology of the first polar body and embryos and clinical pregnancy.

92 Four types of the of grafts from the organizer area were transplanted into host embryos to see if the epiblast or hypoblast of the organizer area had an ability to induce a secondary embryo.

93 The time-lapse recording showed that at this stage the blastocoele collapsed at least once in 25 of the 26 embryos (96%).

94 In the case of stem-cell research, some argue that the ethical issues raised by using human embryos are enough to ban the research.

95 However, the lev - els of MP _ 4 in the estrous period were high, and the quality of embryos was bad.

96 The Embryos Bill sets limits on the use of gametes and embryos.

97 They can, however, generate "uniparental" embryonic stem cell lines. Uniparental embryos with two maternal sets of chromosomes are known as parthenogenetic.

98 The corn snake embryos develop inside the protective , leathery shell.

99 Identical twins form when a single fertilized egg in the mother's body divides into two embryos.

100 The LDH isozymes and chromosome karyotype analysis demonstrated that the nucleartranplanted embryos exhibited the characteristics of Bufo raddei.

101 Short time delay don't result in preimplantation embryos death, but impacted blastula rate of pronucleus embryos.

102 The Boer goat ear skin fibroblast nucleo-transferred embryos and bovine-goat(Boer) interspecies clone embryos have been evaluated by studying the ultrastructure of Boer goat embryos in vivo.

103 Methods: Injecting cycloheximide to 15 - day - old chick embryos and were observed under transmission electron microscopy.

104 Objective Evaluate the reproduction toxicity of lead acetate to rodent with the embryos transplant technology.

105 In cell totipotency , cells of plant have the potential to develop into embryos and plants.

106 Young embryos can be observed from prothalli about 2 weeks after fecundation.

107 We assessed cytogenetic and developmental toxicity in pre-implantation mouse embryos after maternal exposure to trichlorfon at low doses for one month.

108 The chicken embryos die of H5 hypotype AIV have hemorrhagic spot at every pore too,(http:///embryos.html) the death time of the chicken embryos is during 24 to 60 hours.

109 When scientists artificially increased calmodulin in chicken embryos, the chicks began growing extended beaks, just like a cactus driller.

110 Caplan points to Internet bidding wars for eggs, a lack of standards in genetic screening of embryos, and unenforceable contracts with surrogate mothers.

111 A sharp demarcation of adventive embryos from zygotic embryos cannot be drawn.

112 PGM gene transcription was not found in 1-8 cell and morula embryos, so glycogenesis and glycogenolysis in these embryos were not present.

113 The quality of preservation is outstanding, but what is even more impressive is the number of ichthyosaur fossils containing preserved embryos.

114 The concentration distribution of copper and titanium ions and topography in the embryos of mungbean were measured by SEM and SIMS.

115 Objective: To investigate the development and differentiation of blastomeres isolated from early human embryos, and study the totipotency of blastomeres.

116 To analyze the relationships between the morphology of first polar body and embryos and clinical pregnancy.

117 The President also reversed his predecessor's ban on funding for embryonic stem-cell research, but specified that the embryos must come from fertility clinics that would otherwise discard them.

118 Doctors are developing artificial wombs in which embryos can grow outside a woman's body.

119 The axial skeleton of mutant embryos shows abnormal vertebral fusions in cervical, lumbar and caudal regions.

120 Most grass embryos have a flap - like structure known as the epiblast.

121 Methods Dorsal root ganglions (DRG) from rat embryos were isolated under microscope and dissociated in trypsin. The dissociated neurons were treated with 5-fluorouracil for purification.

122 Aggregation of ES Cells with Mouse Morula state Embryos .

123 The president's announcement did not address a related issue, whether or not to lift the ban on federal funds for research on embryos themselves.

124 Somatic embryogenesis was successfully done in Liriodendron hybrids with the immature zygotic embryos as explants.

125 Concluson: The hypoplasia of embryos is not the primary reason for long dormancy of the seeds.

126 Objective: To study effect of hydrosalpinx fluid on mouse early embryos development in vitro.

127 The present invention provides systems for simultaneous processing of multiple injected embryos.

128 The sex of embryos were determined with PCR ( Polymerase chain reaction ) technique.

129 The gastrulation of CynoPs embryos is not interrupted by removing the bottle cells in dorsal sector.

130 Second, the principal graph algorithm is adopted to generate skeleton line of zebrafish embryos based on the idea of principal curves.

131 Effect of different hormone , carbon source , medium and transfer time on redifferentiation of adventitious buds from callus derived from immature embryos have been discussed.

132 Asymmetric mitoses were also observed in two other phosphorylated proteins primed for destruction, and in two other cell types: monkey cells in vitro, and Drosophila embryos in vivo.

133 A year ago, we showed that you could do it with cells from embryos, " said Wilmut."

134 Noah's Ark is aimed atcollecting eggs, embryos, semens and DNA of endangered animals and storing themin liquid nitrogen.

135 He did a lot of research into the embryological origins of a rare blood disorder in vampire bats. He dissected their embryos and documented every stage of their embryonic life.

136 The LDH isozymes and karyotype analysis demonstrated the nucleartranplanted embryos the characteristics of Bufo raddei.

137 Histological Observation of Somatic Embryogenesis from Cultured Embryos of Quercus variabilis BI.

137 Wish you can benefit from our online sentence dictionary and make progress day by day!

138 There was no significant difference in morula development when cloned embryos cultured in 20% hydrosalpinx fluid media (7.3%) compared with those cultured in vivo (11.1%).

139 I HAVE entered into this wager with Rupert Sheldrake because of my interest in the details of how embryos develop, and how our understanding of this process will progress.

140 Embryos after culture ever day , the blastocyst formation rate and hatching rate were accounted.

141 Results Mouse embryos were successfully hatched, adhered, implanted and outspreaded under the coculture system. The extraplacental cone and amniotic sac were formed as well.

142 The gene in question belongs to a retrovirus and the embryos in question belong to sheep.

143 Human embryo stem cell research makes use of day five embryos which are just a glob no thicker than a needle and have yet to split cells.

144 In this study, mouse morula and blastocysts were vitrified using Straw Method and OPS Method, after frozen for 1-6d, embryos were thawed using DPBS contained 0.

145 All of the examined scc - 3 RNAi embryos displayed abnormal mitosis.

146 Dr. Bonner learned of a North American species of slug-forming slime mold called Dictyostelium discoides and began to raise them in his lab, studying them as a simple analog of animal embryos.

147 As a stored protein, vitellin is a major protein component accumulated in vitellus granules during the formation of ovotids. The protein plays an important role in the development of embryos.

148 Parents also agonise about what they should do with their surplus frozen embryos.

149 A few days before the event, the Archbishop of Paris unleashed a missile: the telethon is fine, he said, except when it raises money for the destruction of human embryos (ie, for stem-cell research).

150 Objective To evaluate the efficacy and efficiency of cleaved human embryos through vitrification.

151 In a biological attack unique in the animal world, the unassuming embryos use a virus in their DNA to paralyze their host.

152 In the design and development board said embryos used a combination of theoretical analysis and data correction methods.

153 Therapies using stem cells, or cells derived from embryos that can turn into myriad cell types, can potentially restore normal hearing.

154 The determination and differentiation of notochord in Bufo bufo gargarizans embryos in different developmental stage have been systematically studied.

155 A method Agrobacterium tumefaciens transformation for perennial ryegrass was developed using the calli derived from mature embryos, and the transgenic plants were successfully obtained.

156 These indicated that there existed rich energy metabolisms in the genesis and development of somatic embryos of Liriodendron hybrid.

157 This article was designed to establish the technique of superovulation on the golden hamster and understand the distribution of the preimplantation embryos in the female genital tract.

158 Thus, even during implantation the blastocyst may still divide and grow into two separate embryos.

159 Embryology The study of the development of embryos, usually from fertilization.

160 It concludes S. aureus L forms have teratogenicity , which may be a comprehensive effect on the visceral yolk sac function and embryos.

161 Objective:To study the effect of reconstructed embryos by cytoplasm injection and electrical fusion in rat-mouse inter-species somatic cell nuclear transplantation.

162 Objective Using dual color fluorescent in situ hybridization (FISH) to detect sex chromosome mosaicism in human embryos and perform preimplantation gender diagnosis.

163 Evolution can explain why human embryos look like gilled fishes.

164 SCP also inhibited the angiogenesis in the chorioallantoic membrane of chicken embryos significantly.

165 The main results were described as follows:1)Initial inducing embryogenic callus and globular embryos had super regeneration capacity than other stage embryos.

166 There were no statistical differences in fertilization and degeneration of oocytes, and abnormality of 2 cell embryos in the mouse between the two PCB congeners.

167 With a precooled device(), grind the embryos to a fine powder.

168 What somatic - cell nuclear transfer technology produces are cloned human embryos.

169 The contents of palmitic acid and oleic acid in mouse embryos were relatively similar to that in reproductive tract fluids.

170 Brazilian student Jorge Lopes has pioneered the conversion of data from ultrasound and MRI scans into life-size plaster models of living embryos using a method called rapid prototyping.

171 Algae are found living inside the tissues of spotted salamander embryos, representing the first known case of an algae-vertebrate co-habitation arrangement.

172 In vitro incubation of embryos and embryonic development of Panulirus homarus were studied.

173 Applying YAG double-frequency laser microbeam respectively irradiated fertilized eggs, 4-cell-stage, blastula stage embryos of Bufo bufo gargarizans.

174 Using embryogenic calli from young embryos as explants, bean chitinase gene was transferred into spring wheat plants by microprojectile bombardment.

175 Gametosomatic fusion of pummelo with sweet orange led to the regeneration of triploid embryos. Pollen-tube growth was observed during the culture.

176 When the embryos are only eight cells large, an embryologist very carefully makes a hole in each shell, and sucks out a single cell to be tested genetically.

177 The other embryos were sliced into ultraslices, stained with both uranyl acetate and lead citrate, to observe the effects of passive smoking on the ultrastructure of neural epithelia with TEM.

178 Because it inoles destroying human embryos, opponents call it unethical and immoral.

179 There are several methods for sexing embryos, such as karyotype analysis, H-Y antigen detection, X-linked enzymatic determination and polymerase chain reaction (PCR) amplification.

180 Most embryos from natural estrous rats migrated into the uterus ahead of morula stage, while embryos from superovulated rat entered the uterus at 8-cell stage.

181 This staging system for presomite embryos is simple, practical and accurate.

182 Van de Velde, "but we already know from cryopreserved embryos that the loss of one cell from a 4-cell stage embryo does not affect its capacity to implant in the womb."

183 Researchers at the Tokyo University of Marine Science and Technology collected spermatogonia from adult rainbow trout and injected them into sterile salmon embryos.

184 Objective: to establish a method of producing polyploid mouse embryos.

185 Embryonic Stem cells(ES)can be derived from the early stage embryos of mammiferous animals.

186 Preactivating donor cells and enucleated oocytes with ionomycin has no significant enhancive effect on the cleavage of constructed embryos, but it arrests the blastocyst development.

187 To investigate the effects of freezing and thawing procedure on human embryos survival rate and development after zona pellucida micromanipulation.

188 Hence embryos from cloned animals, such as those that were used in the present case, are available for import into the UK.

189 Such hybrid embryos from Caryopsis out in the anatomy of a embryo culture, the results of a hybrid seedlings.

190 The best example of this phenomenon is the formation of adventitious embryos in carrot tissue cultures.

191 The D1 isolate of goose paramyxovirus caused 100% mortality of goose, duck and chicken embryos. Infected allantoic fluid could produce high titer of hemagglutinin test.

192 Earth was made of embryos like Mars, but Mars is a stranded planetary embryo that never collided with other embryos to make an Earthlike planet.

193 Hence, potentially viable embryos will be discarded upon screening a single blastomere.

194 The results were as follows: (l)On the 12th day of embryos, the anlage of spleen appeared in the dorsal mwesogastrium.

195 In this study, the aim is to optimize the systems of IVM, IVF of oocytes and IVC of embryos in ovine and further promote embryo biology engineer development.

196 However, not all embryos survive the freezing and thawing process, and the live birth rate is lower with cryopreserved embryo transfer.

197 Scientists have discovered the primary mechanism by which thalidomide causes malformed limbs in developing embryos.

198 Embryos developed by in vitro fertilisation Methods : Would be routinely scanned for genetic illnesses.

199 When an animal develops, embryos form three cellular or germ layers - ectoderm,(http://) endoderm and mesoderm - which then go on to form the body's organs and tissues.

200 Objective To explore the clinical value of tubal pregnancy embryos extrusion operation by laparoscopic.

201 The one-celled embryos, created at the University of Newcastle, were destroyed within days, as required by law.

202 Haploid embryos which only with chromosome of female parent were obtained due to the chromosome elimination of pollen parent quickly and completely during the heterozygote development.

203 Fruits and embryos were obtained by self - pollination of Avignon and Lilium brownii.

204 The viruses were propagated in goose embryos, the GPV antigen could be detected from allantoic fluid of infected embryos by agar gel precipitation.

205 Some countries allow all kinds of ESC research (except for reproductive cloning), while others, such as Brazil, allow research only on embryos discarded from fertility treatment.

206 The two embryos that dizygotic, not genetically identical. Therefore, the twins are not identical.

207 Acoustic analysis instruments are applied to identify bird embryos and a new semi-invasive method is proposed to measure heart rate of chick embryos in this paper.

208 Cajal examined nervous tissue from embryos, and noticed that the axon and dendrites grow out of the cell body of the neuron.

209 After thawing, 26 of the 33 embryos (most of which were composed of between two and ten cells) developed to blastocyst stage in which the blastocoele is formed.

210 These methods may be used to purify C. psittaci propagating in chicken embryos.

211 Objective: To study the effect of estrogen and progestogen on the development and implantation of mouse embryos in vitro.

212 Analysis of these mutant embryos reveals variable, yet striking defects in caudal specification, limb patterning and axial skeleton formation.

213 Fossilized animal embryos of 570 - 600 million years ago from Doushantuo formation of East China.

214 But the scientific use of embryos is an issue of debate.

215 In results, after NGVEV was propagated in 10-days-old duck embryos for 4 passages by allantoic cavity inoculation, it was adaptable to the DEFs cell culture system.

216 A male tomato clownfish (Amphiprion frenatus) tends his field of developing eggs like a gardener, scooping away ones with dead embryos.

217 Early division phase embryos may use metabolites provided by the suspensor, persistent and degenerating synergids.

218 The project represents a refinement of plans to use controversial "hybrid embryos" to create stem cells that carry a genetic mutation responsible for motor neurone disease.

219 Any embryonic stem cells used would be taken from four or five-day-old embryos left over from IVF treatment and donated to the research project.

220 Parthenogenetic embryos could be used to detect the culture system in vitro as well as fertilized embryos.

221 After preparing 114 frozen embryos from Canadian Holstein, we have got 68 ET calves by nonsurgical embryo transferring.

222 Now that we know that microglia originate in early embryos, theoretically we should be able to generate microglia from embryonic stem cells to treat brain diseases caused by defective microglia.

223 Biological effects of microgravity on brain cells were simulated by rotating chicken embryos in a clinostat during their hatch.

224 In his paper, Haeckel drew by hands the morphological features of early embryos of several animal species.

225 Therefore the allo-granular cells' mitochondria transfer improved the development of bovine parthenogenetic embryos.

226 Somatic cells of angiosperms enter a regenerative phase and behave like embryos.

227 Embryos that fit the bill are then implanted in the mother's womb.

228 They occur naturally when bacteria, plants and insects reproduce asexually, and when mammalian embryos split and go on to develop into identical twins.

229 The secondary oocytes from Saanen dairy goats and 4-32 cell embryos from Shaanbei black goats were used as cytoplast donors and karyoplast donors respectively.

230 A plantlet had been obtained. Histological sections proved that the embryos had a typical histological structure of monocot somatic embryos.

231 A junior embryologist neglected to read the label on the embryos before they were implanted in the wrong woman through IVF.

232 For years, private financing has been used to create embryonic stem cell lines, mostly from discarded embryos from fertility clinics.

233 Various celeriac explants were in vitro cultured on MSO media added different ingredients in order to induce high quality somatic embryos suitable for making artificial seeds.

234 Objective:YAG double-frequency laser microbeam was applied to study the effects on protein pattern of dimensional electrophoresis of tail bud embryos of Bufo bufo gargarizans.

235 The effects of different embryo bisection solutions and methods and embryo development stages on in vitro embryos bisection of ovine were researched in this experiment.

236 The scientist has made a pointed comparison between suspensors of plant embryos and mammalian trophoblasts.

237 In conclusion, yak are able to crossbreed with Bos taurus, but the rates of cleavage and blastocyst development of resultant hybrid embryos were different between different fertilization combinations.

238 The results indicated that PTEN is involved in the preimplantation embryos development, and affects the formation of blastocoele.

239 Britain became the first European country to legalize the creation of cloned human embryos.

240 The somatic embryos developed directly into plantlets with roots and buds through multicellular proembryo, globular, heart -shaped, torpedo - shaped and cotyledon stages.

241 As planned, 0.2 million embryos, 13 thousand internal embryos, 7000 preternaturally and collect ovum produced embryos will be produced annually when the project finished.

242 The results are as follows: (1) The mitochondria in the embryos before morula stage were mostly hooded.

243 But such experiments destroy human embryos, so right - to - lifers object.

244 The virus could not agglutinate 1% of the chicken erythrocytes and interfered with the development of the hemagglutinins by the B-1 strain of Newcastle disease virus in the chicken embryos.

245 Objective:To probe into the synergetic teratogenic action on mouce embryos between hyperthermia and observed factors (Vitamin A and dactinomycin).

246 The purpose of this study is to increase the pregnancy rate in patients with implantation failure by use of a co-culture system for human embryos development on autologous endometria monolayer cells.

247 Bush has restricted the use of cloned human embryos in research.

248 Objective To investigate the effect of environmental contaminants on development rate and DNA methyltransferase activity of preimplantation embryos.

249 The cells of the integument and nucellus of some plants form perfectly normal embryos.

250 In this study, the foreign gene was transferred into wheat immature embryos by Agrobacterium tumefaciens mediated, and the factors influencing wheat transformation were analyzed.

251 In contrast to Haeckel's drawings, these photos show remarkable differences between the early embryos of these species.

252 Scientists have secretively created more than 150 human-animal hybrid embryos in British laboratories over the past three years.

253 The experimental results confirmed that photobacterium phosphoreum and zebrafish(B. Rerio)embryos were favourable to carry out combined toxicological experiment.

254 That's because "pregnant" pipefish fathers will kill off embryos conceived by an undesirable female to make room for the offspring of a potentially more attractive female.

255 However, the embryos at gastrula or heart beating stage were very sensitive to UV irradiation, showing just damage effect, which was very strong even at very low amount of the UV irradiation.

256 The term caudal means nearer to the tail and is used in description of embryos.

257 There are two methods of collecting cow embryos -- directly through the birth canal, or surgically.

258 In this paper, we have studied effects of monocrotophos on the development of preimplantation mouse embryos cultured in a simple defined chemical medium.

259 Cc, born two months ago, was the only live birth from 87 cloned embryos that were implanted in surrogate mothers.

260 By using the improved FHK apparatus made in Japan for embryo transfer in dairy cattle, the embryos were transferred into the uterine gland of two cattle recipients through the vaginal fornix.

261 Results: As the decreasing score of the oocyte, the maturation rate, fertilization rate, cleavage rate and the quality of embryos decreased, meanwhile the apoptosis rate of granulose cells increased.

262 A series of numerical experiments have been done to test the seeding effect of artificial icecristals or raindrop embryos using a one-dimentional time dependent cumulonimbus cloud model.

263 Working with iPS cells in this way also gives information that should make it easier to develop embryonic stem cells (ES cells) from pig or other ungulate embryos, said the researchers.

264 The effects of fetal bovine serum(FBS) addition time, concentration and different culture systems on the developmental potentiality of bovine parthenogenetic embryos were observed.

265 Objective To explore the method of embryos transplant technology in evaluating the development toxicity of hydroxyurea.