Evolution can explain why human embryos look like gilled fishes.
進(jìn)化論能夠解釋為什么人類的胚胎看起來象除去了內(nèi)臟的魚一樣.
辭典例句
A sharp demarcation of adventive embryos from zygotic embryos cannot be drawn.
不定胚與合子胚之間不能劃分出明顯的界限.
辭典例句
Most grass embryos have a flap - like structure known as the epiblast.
大多數(shù)禾本科胚有一片瓣 狀 結(jié)構(gòu)通常稱為外胚葉.
辭典例句
The scientist has made a pointed comparison between suspensors of plant embryos and mammalian trophoblasts.
這位科學(xué)家把植物胚的胚柄與哺乳動物的滋養(yǎng)層做了直接的比較.
辭典例句
There are two methods of collecting cow embryos -- directly through the birth canal, or surgically.
收集母牛胚胎的方法有兩種, 一種是直接通過產(chǎn)道, 另一種是施用外科手術(shù).
辭典例句
The cells of the integument and nucellus of some plants form perfectly normal embryos.
某些植物的珠被和珠心細(xì)胞形成完全正常的胚.
辭典例句
Early division phase embryos may use metabolites provided by the suspensor, persistent and degenerating synergids.
早期分裂時(shí)期的胚可以利用胚柄, 宿存和退化中的助細(xì)胞所提供的代謝物.
辭典例句
The corn snake embryos develop inside the protective , leathery shell.
粟米蛇的胚胎在堅(jiān)韌的保護(hù)殼里發(fā)育.
電影對白
Fruits and embryos were obtained by self - pollination of Avignon and Lilium brownii.
俄維農(nóng)自交和野百合自交可以獲得自交果實(shí)和自交胚.
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What somatic - cell nuclear transfer technology produces are cloned human embryos.
肉體細(xì)胞核心移植技術(shù)生產(chǎn)的是克隆人的胚胎.
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Objective: to establish a method of producing polyploid mouse embryos.
目的: 探索制作小鼠多倍體胚胎的方法.
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Embryology The study of the development of embryos, usually from fertilization.
胚胎學(xué):是研究胚胎發(fā)育的學(xué)科, 通常從受精開始.
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That might do away with the need for embryos.
這可能避免需要胚胎這一緩解.
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All of the examined scc - 3 RNAi embryos displayed abnormal mitosis.
所有檢測的 scc -3RNA干擾胚胎都表現(xiàn)出異常的有絲分裂.
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Embryos that fit the bill are then implanted in the mother's womb.
那些符合條件的晶胚于是就被植入母親的子宮.
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