This kind of structure of micropyle has been proved by computer simulation to be favourable for the sperm to agglutinate and enter the micropyle. So, another kind of teleost is found after Misgurnus anguilicaudatus, in which exist unnegligible mechanical dynamic factors besides the chemical one during the sperm entry into the micropyle.

通過電子計算機模擬，驗證了卵膜孔的這種結(jié)構(gòu)国产女主播精品在线播放，為精子的云集和進(jìn)入精孔管所提供的有利條件h网站在线看免费，從而，于泥鰍之后又發(fā)現(xiàn)了一種真骨魚18岁以下禁视频免费网站，其精子入卵除化學(xué)因素外3344视频，還存在著不容忽視的機械動力因素。

In this study, the fine structures of chorion, micropyle, sperm entry site and plasma surface of its eggs were observed by SEM and TEM.

用掃描和透射電子顯微鏡觀察了天然三倍體萍鄉(xiāng)肉紅鯽成熟卵子卵殼av网站啊啊啊啊、受精孔在线看片无码永久免费A、精子進(jìn)入?yún)^(qū)以及卵子質(zhì)膜表面的細(xì)微結(jié)構(gòu)，觀察了兩種不同交配組合：萍鄉(xiāng)肉紅鯽萍鄉(xiāng)肉紅鯽與萍鄉(xiāng)肉紅鯽♀興國紅鯉♂的受精早期精子入卵的時序欧美AAA性爱网站。

Miracidium eggs containing feces row with the host terminal to the water, miracidium drilled eggs, swimming in the water encountered intermediate host, which drill into the further development of their body, or death.

含有毛蚴的卵隨終末寄主糞便排至水中国模人体美女专业网站，毛蚴鉆出卵，在水中游動欧美日韩国产亚欧在线观看，遇到中間寄主激情视频小说理论，即鉆入其體內(nèi)進(jìn)一步發(fā)育，否則死亡国产一级特级黄色网站。

RA was observed to have a tendency towards family aggregation, as the morbidity of RA was up to 30% in monovular twins, 5% in non-identical twins, which demonstrated the occurrence of RA associated to genetic factors.

有研究發(fā)現(xiàn)RA有家族聚集傾向肏屄视频免费观看，單卵雙生子發(fā)病率為30％，雙卵雙生子為5％99九九免费精品，說明RA發(fā)病與遺傳因素有關(guān)黄色欧美一区。

It was found that there were kinds of neurotransmitter receptors expressed in Xenopus oocytes besides native muscarine receptor in oocyte itself.

實驗發(fā)現(xiàn)除卵母細(xì)胞本身所具有的muscarine受體外，還有多種受體明顯地在卵母細(xì)胞上表達(dá)中文亚洲日韩特黄无码免费看电影。

To observ the toxicity of infected mice and establish mice reproductive toxicity model;②To observe the infected BALB/c female mice ovulation quantums and ovum chromosome;③To observe the oestrogenic hormone( FSH, LH, E2 )level of infected BALB/c female mice;④To observe zygote developmental condition before nidation;⑤To observe embryonic development condition of infected mid-gravidity mice to research the reproductive toxicity and development toxicity of toxoplasma gondii to the BALB/c female mice.

目的： 本實驗采用弓形蟲感染BALB/c雌鼠cao国产，①觀察染蟲雌鼠的毒性反應(yīng)，建立生殖毒性的小鼠模型图片乱伦网站；②染蟲雌鼠排卵情況及卵母細(xì)胞染色體的變化免费观看在线一区二区日韩；③染蟲雌鼠性激素(FSH、LH中文字幕2区、E2)水平的變化午夜东京热精品久久；④著床前受精卵的發(fā)育情況；⑤孕中期鼠染蟲后胚胎的發(fā)育情況免费无码视频在线观看我网站，探討弓形蟲對雌鼠生殖功能及胚胎發(fā)育的毒性作用精品国产区一页。

Eggs of Black-crowned Night Heron and Little Egret were sampled in May of 2005 from Yingshang Balihe Reserve, Anhni Province. Residues of Cd, Pb and Cr were determined by atomic absorption spectrophotometer analysis.

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An Edinburgh University study of identical and non-identical twins suggests genes may control half the personality traits keeping us happy.

愛丁堡大學(xué)針對同卵與異卵雙胞胎的研究顯示女生被操出白浆视频，基因可能控制一半讓我們快樂的個性特徵。

The results indicated that spindles, chromosomes and microfilaments of porcine oocytes at different stages were nonreversible damaged obviously followed exposion to freezing medium or vitrification, which may be the main reason affecting the maturation, fertilization and development of oocytes.

本研究結(jié)果表明欧美精品观看视频免费，豬GV期和MⅡ期卵母細(xì)胞經(jīng)冷凍保護劑處理或玻璃化冷凍保存后自慰网站，都明顯造成了紡錘體、染色體和微絲不可逆的損傷樱桃视频iosapp，可能是影響卵母細(xì)胞成熟日韩精品深夜影院在线观看网站下载、受精與發(fā)育的重要原因。

At the small growth stage, three kinds of the sex steroid receptors usually were localized in the cytoplasm or nuclear membrane of oogonia and early primary oocyte, and localized in the cytoplasm and nucleoplasm of oocytes at the large growth stage and mature stage.

在小生長期91国在线视屏，3種受體通常定位在卵原細(xì)胞和早期初級卵母細(xì)胞的胞質(zhì)或核膜免费网站18岁以上；在大生長期和成熟期，則定位在胞質(zhì)和核質(zhì)一本大道香蕉8中文在线视频。