雄配子体
- 与 雄配子体 相关的网络例句 [注:此内容来源于网络,仅供参考]
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One of two sperm get into an archegonium and fused with egg. The nucleus of fertilized egg began to divide, and the walls were formed after the third division. The eggs without fertilization divided two times and then disappeared.
雄配子体产生的两个精子中的一个进入颈卵器与卵细胞结合形成受精卵,受精卵核到第3次分裂形成细胞壁,没有受精的卵细胞还要进行两次有丝分裂后才消失。
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As the male gametophyte, pollen delivers sperm to the embryo sac for fertilization by pollen-tube polarized growth.
花粉作为种子植物的雄配子体,通过萌发后极性生长的花粉管将精细胞送到胚囊完成受精作用。
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In higherplants,the development of flower is a very complex process,which involves thetransition from vegetative tissueto floral tissue,themorphogenesis of flower and the development and differentiation of gametocyte.
在高等植物中,花的发育是一个非常复杂的过程,涉及到由营养分生组织向花分生组织的转变,花的形态建成以及雌、雄配子体的发育和分化。
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The primary results could be summarized as follows: The result of flower developing showed that the flower bud morphological differentiation way is form a leaf bud with a flower bud; The process of microspore occurring and male gametocyte development is normal,the development of anther wall is elementeny type.
结果如下:花发育的研究表明,安祖花的花芽分化是以一叶芽一花芽的方式进行;小孢子与雄配子体的发育过程均属于正常发育,花药壁的发育属于基本型,绒毡层细胞属于腺质绒毡层,成熟的花粉粒为2-细胞型。
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Male gametogenesis is one of the key steps in plant sexual reproduction and is essential for the alternation between the diploid sporophytic phase and haploid gametophytic phase in the life cycle of higher plants.
植物雄配子体发生和发育是有性生殖的关键步骤之一,是高等植物通过有性生殖进行世代交替所必需的。
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C The mature male gametophyte consists of three cells resulting from two meiotic divisions.
成熟的雄配子体包括的三个细胞是由两次减数分裂而来的
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Our study proved that there is a polysaccharide wall between the GC and VC in the comparatively long period of development of the male gametophyte.
本研究证明,在玉竹雄配子体发育的较长一段时间内生殖细胞具一多糖性质的壁与营养细胞分隔。
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The microsporogenesis and development of male gametophyte in Tsoongiodendron odorum Chun were observed by using the paraffin section method.
采用石蜡切片法对观光木的小孢子发生和雄配子体发育进行了解剖学研究。
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Pollen is the male_gamete of seed plant, which plays an important role in sexual reproduction.
花粉是种子植物的雄配子体,在有性繁殖中发挥着重要作用。
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The fertilization was processed by sperm in mature male gametophyte combining with egg cell on the top of archegonia on June 15 or so.
摘要樟子松发育成熟的雄配子体中的精子6月15日左右在颈卵器中上部与卵细胞结合,进行受精作用,其后,受精卵进行游离核分裂,形成8个子核时,开始形成细胞壁。
- 推荐网络例句
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Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.
在对危险的南部地区访问时,他斥责什叶派民兵领导人对中央集权的挑衅行为。
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In fact,I've got him on the satellite mobile right now.
实际上 我们已接通卫星可视电话了
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The enrich the peopling of Deng Xiaoping of century great person thought, it is the main component in system of theory of Deng Xiaoping economy, it is a when our country economy builds basic task important facet.
世纪伟人邓小平的富民思想,是邓小平经济理论体系中的重要组成部分,是我国经济建设根本任务的一个重要方面。