胚孔
- 与 胚孔 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Chalazogamy A method of fertilization in angiosperms in which the pollen tube enters the ovule by the chalaza instead of through the micropyle, penetrating the placenta en route.
合点受精:被子植物的一种受精方式,花粉管是通过合点部分而不是通过珠孔进入胚珠的。
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The syndrome seems to result from disturbances of the caudal mesoderm before the fourth week of gestation. This includes the caudal cell mass and the cloaca, what explains the associated anomalies of the genitourinary tract (24%) and lower gastrointestinal tract.
本病是妊娠第4周之前尾部中胚层的紊乱所致,包括马尾细胞团和泄殖孔,这解释有24%的病例伴有泌尿生殖道畸形和下胃肠道畸形。
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Egg apparatus The three haploid nuclei that are situated at the micropylar end of the embryo sac in most flowering plants. The central nucleus is the female gamete and those to either side of it are called the synergids.
卵器:在大多数显花植物的胚囊中,位于珠孔端的三个单倍体核,其中卵细胞位于中央,两个助细胞分别位于两边。
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Eyebolt holes in 2 sides of mold each half..
模胚每块板的两边都要有吊环孔
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The obturator of the ovule is of funicular origin.
黄檗胚珠的珠孔塞起源于珠柄。
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Following the puncture of zona pellucida with two holes by injection pipette that contained donor nuclei or cells, the injection pipette was pulled back to the perivitelline space while the negative pressure was increased in the holding pipette until the polar body and karyoplasm were wiped off completely. Then a reconstructed embryo was completed by the direct injection of the donor nucleus or cell without pulling out the injection pipette.
首先以预先吸有细胞核或细胞的注射针在固定于持卵针上的卵母细胞透明带上穿刺两个孔,然后一边缓慢地将注射针回拔至卵周隙中,一边逐渐增加持卵针中的负压,直至极体与目标核质被完整吸入持卵针中而完成去核,最后在不拔出注射针的情况下直接注射细胞核或完整细胞进而完成重构胚的构建。
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Porogamy The usual method of fertilization in angiosperms in which the pollen tube enters the ovule by the micropyle.
珠孔受精:被子植物通常的受精方式。花粉管通过珠孔进入胚珠。
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Female flowers: tepals 5 or 6 or several; carpels 2 or 3; ovary superior, 2- or 3-locular; styles 2 or 3, free, persistent; stigma broadly recurved; interstylar nectaries present or lacking; ovules 2 per locule, pendent, anatropous, bitegmic, crassinucellar; micropyle formed by inner integument or by both integuments.
雌花 花被片5或者6或者几个;心皮2或3;子房上位,室2或3;花柱2-3,离生,宿存;宽的柱头下弯;花柱间的蜜腺有或者无;胚珠每室2,下垂,倒生,具双珠被,具厚珠心;珠孔由内珠被或者两层珠被形成。
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The ovule of development is the one nucellus that make a group at first organization, because basilar segmentation is rapidder and form or two bags by the layer, bead by , other nucellus the organization laps inside and next alveolus stays in one aspect of the matter, bead aperture .
发育的胚珠最初是一整团珠心组织,由于基部的细胞分裂较快而形成一层或两层包被层—珠被,将其他珠心组织包裹在内并在一端留下一个小孔—珠孔。
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Ovary with 1 to several ovules per locule; septa often containing nectaries opening by pores at base of ovary.
子房具1到数个胚珠每室;隔膜通常包密腺,通过子房基部的孔打开。
- 推荐网络例句
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I will endeavour to find you some assistance.
我尽力帮你找人帮忙。
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At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.
起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像,后来回台湾,甚至去年在北京,居然也四处看见她的海报,才惊讶她的魅力之大。
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Ah may dee:You are chinese living in a democratic country.
你是居住在民主国家的中国人吧。