Apoptosis is a form of altruistic cell suicide, which is involved in many physiological processes including tissue homeostasis, embryonic development, and immune response.
细胞凋亡是细胞内在自杀程序被激活的结果，参与许多重要的生理过程，如组织稳态、胚胎发育和免疫应答等。
Result］ The embryonic development process of C.
结果］ 克氏原螯虾在工厂化繁育条件下的胚胎过程可分为7个主要时期，即受精卵、卵裂期、囊胚期、原肠期、无节幼体期、复眼色素期和孵化期，胚胎发育各期出现的时间序列分别为0、1.5、4、6、11、21和32 d，有效积温分别为0、31、61、96、181、340和520 ℃·d。
The ratios of DHA/EPA and AA/EPA in fertilized eggs were approximately 1:1 and 1:2, respectively, and remained almost unchanged during embryonic development, and both which was approximately 2:1 during larval development.
受精卵的DHA/EPA值接近1：1，而AA/EPA值接近1：2，这两个比值在整个胚胎发育过程中几乎不变；在仔鱼发育过程中，这两个比值都接近2：1。
Medication factor:Some medicines can affect embryonic development by placental barrier, such as, sleeping pill, antiallergic agent, diphenlhydantoin, adrenal cortical hormone and cyclophosphamide.
药物因素：有些药物能通过胎盘屏障影响胚胎发育，如安眠药、抗过敏药、苯妥英那、肾上腺皮质激素、环磷酸胺均可导致胎儿畸形。
Medication factor:Some medicines can affect embryonic development by placental barrier such as sleeping pill antiallergic agent diphenlhydantoin adrenal cortical hormone and cyclophosphamide.
药物因素：有些药物能通过胎盘屏芟影响胚胎发育，如安眠药、抗过敏药、苯妥英那、肾上腺皮质激素、环磷酸胺均可导致胎儿畸形。
The embryonic development of thymus in snake was investigated with light and electron microscopy, as well as cell account and immunohistochemical methods.
李丕鹏 ，陆宇燕该文应用光镜、电镜和细胞计数技术对胚胎发育期虎斑颈槽蛇胸腺的发育分化进行了研究。
In this group, the timing of expression of specific marker of neural stem cell, Soxl and neuronal special protein Tau was following the order of embryonic development. Many neuronal fibers formed the extensive and complex network at D13. When ES cells, which had been cultured in complete medium for 72h, were placed into cultured in Serum free medium, part of them differentiated into giant cells, part of them died and others gone into the normal neural differentiation similar to the ES which had been cultured in complete medium for 24h with the exception of less cells moving away and lacking long neuronal fibers.
用含LIF的ES细胞完全培养液预培养24h的ES细胞，在后续的神经分化中，早期神经干细胞特异性基因Soxl、神经元特异性基因Tau的表达时序与胚胎发育过程相符，分化产生了神经干细胞、神经胶质细胞和神经元，细长的神经纤维交织成广泛而复杂的网状图像；用含LIF的ES细胞完全培养液预培养72h的ES细胞，在后续的分化实验中，出现了二种结果：①部分细胞去分化成为大细胞；②部分细胞进入神经分化，二种分化过程都伴随有细胞死亡增加的现象。
Based on an unprecedented large-scale artificial breeding experiment on loaches in Henan Province, this paper discusses the effects of different oxytocics on induced spawning and the process of embryonic development in the course of artificial breeding.
在河南省首次对泥鳅进行了大规模人工繁殖试验，并对人工繁殖过程中不同催产剂对催产效果的影响和泥鳅胚胎发育过程作了探讨。
As a mainstay of logistics informatization development, high-tech logistics enterprise has gradually broken through the embryonic stage and entered into the steady development period.
作为承载物流信息化发展的物流高新技术企业也日益走出行业发展的萌芽期，进入稳定的发展期。
The effects of antisense oligodeoxynucleotides of LIM class homeobox gene Bblim in Amphioxus(Branchiostoma belcheri tsingtauense) on embryonic development were studied.
研究了青岛文昌鱼LIM类同源框基因Bblim反义寡核苷酸对文昌鱼胚胎发育的影响。
Parasitic wasps in the two post-embryonic development, the young bee body protein content is increasing day by day, parasitized the same time, David Bee Ichneumonidae protein accumulation to be significantly higher than gifuensis David Bee, and the growth rate of the former significantly larger than the latter.
在两种寄生蜂胚后发育的过程中，幼蜂体内蛋白含量均是逐日增加的，寄生后相同的时间内姬蜂幼蜂蛋白积累要明显高于茧蜂幼蜂，且前者的增长速率也明显大于后者。
These results demonstrated the importance of PACT in early embryonic development.
这反映出PACT可能在高等动物胚胎发育过程中的重要性。
The objective of this study was to improve male pronuclear formation and embryonic development following ICSI of dithiothreitol–treated boar spermatozoa and electrical activation of porcine oocytes after ICSI with piezo micro manipulator.
本试验之目的乃应用二硫苏糖醇(dithiothreitol，DTT)处理公猪精子并联合猪卵母细胞的电激活(electrical activation，EA)，搭配压电脉冲显微操作仪(piezo micro manipulator，PMM)，改善ICSI后猪卵母细胞的雄原核形成及胚发育。
Nestling in the embryonic development due to absorption of a lot of calcium, so that egg-shell thin and fragile.
卵齿 卵生羊膜动物在出卵壳前，上喙先端形成硬化的角质物。
In addition, using RT-PCR to detect expression of centrin homogene during Urechis unicinctus spermatid deferentiation and early embryonic development. The result revealed that (1) expression of HsCEN1 homogene is present during spermatid defferentiation including spermtid and sperm, but not in adult tissues including body wall tissue, intestinal mucous memberane cells and cell in coelom succus; (2) expression of HsCEN1 homogene is not present in unfertilized oocytes but present in that of released polar bodies after fertilization and parthenogenesis oocytes treated with A23187; (3) expression of HsCEN1 homogene is present during early embryonic development including two-cell stage, multicell stage, gastrula to trochophora.
我们还用RT-PCR方法检测了Centrin同源基因在单环刺螠精子分化过程和早期胚胎发育过程的表达，结果显示：在单环刺螠精子发生过程中的精细胞、精子团、精子中都有表达，而在成体的体壁组织、消化道组织、体腔球中则没有表达；在未受精卵中没有表达，而在受精后释放极体的受精卵和经A23187孤雌激活的卵中则有表达；在单环刺螠的早期发育过程——二细胞胚胎、多细胞胚胎、原肠胚、早期担轮幼虫——中都有表达。
Five expressed genes contributed to the flowering process and embryonic development such as prolamine, gene for allergenic protein, chalcone synthase, putative peptide methionine sulfoxide reductase and acyl carrier protein Ⅱ gene were chosen to hybridize with a 1510-RNA-blot (time-point phenotypes) array. The 1510 RNA blots were prepared into an RNA array for the purpose of conferring and validating global transcriptional profiles on booting, flowering and filling quantitatively and qualitatively at a statistic level. The results verified: Prolamine and allergenic protein were high-expressed in filling grains after being regulated by development, Chalcone synthase and methionine sulfoxide reductase were high-expressed in the leavies induced by light, in the root stressed for nitrogen deficiency.
为了全局性分析基因表达谱以及进一步验证它们与开花过程的相关性，选取参与水稻开花过程和胚胎发育过程的基因：查尔酮合酶、酰基载体蛋白Ⅱ、醇溶蛋白、S-腺苷基甲硫氨酸还原酶、过敏反应蛋白等为探针，与1500个水稻RNA斑点阵列进行杂交时，结果证实：醇溶蛋白和过敏反应蛋白受发育调节在乳熟成穗中高表达，查尔酮合酶和S-腺苷基甲硫氨酸还原酶在叶片中受光诱导、在根中受缺氮胁迫高表达。
Neural crest cells are embryonic cells that pinch off early in development to form a variety of structures.
神经嵴细胞是胚胎发育早期形成各种组织的胚胎细胞。
China`s agriculture is the matriarchal society from the beginning of embryonic development.
我国的农业是从母系氏族社会开始萌芽、发展的。
Effects of Laser Irradiation on Early-stage Embryonic Development of Bufo bufo gargarizans.
激光照射对中华大蟾蜍早期胚胎发育的影响
They expressed prominently in the forebrain, mid-hindbrain boundary, branchial arches, somites, limb bud and tailbud of mouse embryos. These expression profiles indicate that Fgf8, Spry2 and Sef belong to a synexpression group and suggest that these genes may functionally interact during embryonic development.
在小鼠8.75天胚胎上（E8.75），这些基因在前脑，中脑和后脑的交界处，鳃弓，体节及尾芽等处有明显的表达，这些表达的相似性提示了它们可能在胚胎早期发育过程中的相互作用。