核子分裂 的英文怎麼說
中文拼音 [hézifēnliè]
核子分裂
英文
nuclear fission- 核 : 核構詞成分。
- 子 : 子Ⅰ名詞1 (兒子) son 2 (人的通稱) person 3 (古代特指有學問的男人) ancient title of respect f...
- 分 : 分Ⅰ名詞1. (成分) component 2. (職責和權利的限度) what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] (料想) judge
- 裂 : 裂動詞[方言] (東西的兩部分向兩旁分開) open
- 核子 : [物理學] nucleon: π 核子頂角 pi nuclear vertex核子靶 nucleon target; 核子傳遞 nucleon transfer; ...
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The results showed that hybrids from hybridization between chlamys farreri and chlamys nobilis had 35 chromosomes and uniform karyotype. on the other hand, 1 / 3 of hybrids from hybridization between chlamys nobilis and chlamys farreri had 35 chromosomes, another 1 / 3 had 38. results showed polymorphism in karyotypes of hybrids from latter hybridization
與此相對應,對正交子代染色體的統計結果表明,約l / 3的染色體分裂相擁有35條染色體,而1 / 3的染色體分裂相擁有38條染色體;正交子代的染色體核型也具有多態性,不能統一。There are two main types of nuclear division : mitosis, which results in daughter cells identical to their parents ; and meiosis ( reduction division ), which produces daughter cells which have half the number of chromosomes of their parent cells, and in which the genetic material has been recombined
核分裂有兩種主要的類型:一種為有絲分裂,即子代細胞與親本相同,另一種為減數分裂,其產生的子細胞所含的染色體數為親本染色體數的一半,基因在分裂過程中發生了重組。The nuclei of larger sunspots sometimes undergo disintegration or splitting into several parts.
較大太陽黑子的核心有時會瓦解或分裂成好幾個部分。Generative nuclei the two gametic nuclei formed by the division of the generative cell in the pollen tube of angiosperms
雄原核:在被子植物花粉管中的生殖細胞(應為雄原核譯者注)分裂成兩個配子的核。In dandelion ( taraxacum ), for example, the chromosomes of the megaspore mother cell remain in one cell after the first meiotic division, forming a restitution nucleus
例如在蒲公英中,在第一次減數分裂后,大孢子母細胞的染色體仍在一個細胞中,形成一個再組核。The two sperm nuclei and the tube nucleus are all derived from a single microspore nucleus by mitosis.
兩個精核和管核都是從同一個小孢子核有絲分裂產生的。The karyotype of nelumbo nucifera during meiosis zygotene was established in this study, which would help the studies of meiosis and molecular cytogenetics in lotus
摘要本研究建立了中國蓮偶線期染色體的核型,為研究蓮的減數分裂過程及分子細胞遺傳學研究提供基礎。Many of the heaviest nuclei can be induced to break up into two fragments of intermediate size, a process called nuclear fission.
許多最重要的原子核能被誘發分裂為兩塊大小適中的碎片,這一過程稱為核裂變。The discovery of the nuclear fission is a new departure in physics
核分子分裂的發現是物理學上的一個新起點。For the purpose of this exception combustion shall include any self - sustaining process of nuclear fission
上述核子燃燒包括自發的核子分裂在內。However, kit protein doesn " t exist in oogenesis after birth. there are also c - myc positive protein granules in the spermatomeres from metaphase i to telophase ii, in the spermatozoa and in the secretory cells of the spermatheca. c - myc protein expresses not in the normal follicles, but in the follicular cells of the apoptotic ones
Myc在處于減數分裂的中期至末期的精母細胞的細胞質或細胞核內呈陽性表達,在減數分裂后形成的精細胞和受精囊囊壁的上皮細胞的細胞質內也有陽性表達:但在出生后的卵子正常發生過程中無陽性表達,然而在凋亡卵泡的濾泡細胞的細胞質內有陽性表達。The mice showed also ageing - associated decline in oocyte quality, as indicated by increased frequency of premature chromatid separation, spindle disruption and / or chromosome misalignments in mii oocytes of aged mice. the gv oocytes from aged mice normally matured in vitro. the percentages of pronuclear - stage embryos, 2 - cell embryos and blastocyst derived from mii oocytes of aged mice by in vitro fertilization ( ivf ) were comparable with ones of young mice, but pronuclei formed 1 h later in aged mice than in young mice
老齡小鼠gv期卵母細胞能正常體外成熟;老齡小鼠m期卵母細胞經體外受精后形成原核期胚、 2 -細胞期胚和囊胚的比率與年輕小鼠比較無顯著差異,但原核形成時間延遲1小時;在老齡小鼠卵母細胞,注射牛精子抽提物或sr ~ ( 2 + )處理時所誘發的ca ~ ( 2 + )振蕩以及在減數分裂成熟及早期胚胎中的pkc分佈未發生改變。After the treatment was removed for 6 min, the nucleus began to reform in those eggs that the spindle did not recover. after 9 min, new nuclei had been reformed completely. the activated eggs entered the prophase of the next cleavage cycle in about 14 min, the metaphase in 19min ; the anaphase in 24min and the telophase in 29min
未恢復紡錘體的激活卵在解除休克后6min ,卵內染色體開始核化, 9min時形成新的二倍體細胞核, 14min時處入再次分裂的前期, 19min時進入分裂中期, 24min進入分裂後期, 29min時處于分裂末期,且可以看到子核的形成。With the rapid development of molecular biology, the researchers of different scientific background are provided with a good opportunity to enter the field. people can resolve some important difficult problems with all kinds of research methods and knowledge in their fields. it is chemists " tribute that they design and synthesize effective nucleic acid cleavage reagents and clarify the reaction mechanism of complexes and dna, which makes it possible to search effective remedial reagents and structural probes by molecular design
分子生物學的迅猛發展為不同科學背景的研究者涉足該領域提供了良好的機遇,人們可以利用各自領域的研究方法和知識來攻克生物學中的一些重要難題,化學家所能做的貢獻就是設計和合成一些特異識別和高效切割的核酸斷裂試劑,並闡明其作用機理,從而使通過分子設計尋找有效的治療試劑和結構探針成為可能。When a pollen grain germinates, a pollen tube pushes its way out through an aperture in the pollen grain wall, and the nuclei migrate into the tube
生殖細胞核分裂,形成兩個僅由細胞核和細胞質構成的精子,其中一個將與卵受精,另一個則與極核融合形成胚乳核。In addition to splitting the nucleus into two halves, the process releases two or more neutrons and a large amount of energy in the form of heat. the released neutrons in turn hit more uranium nuclei and release more neutrons to produce a chain reaction
核裂變過程除了把原子核分裂成兩份外,亦會釋放大量的熱能及同時放出兩個或以上中子,以撞擊更多鈾原子核,再釋放更多中子,產生鏈式裂變反應。During conjugation, the complementary mating type cells unite pairwise undergo meiosis, exchange gametic nuclei and separate again
在接合生殖期間,交配型互補的細胞相互識別配對,進行減數分裂、交換配子核,然後分開。Cortical granule ( cg ) is an unique type organelle of mammalian oocyte. during the maturation of oocyte, cgs shows a specific change in distribution. the generally accepted indicator of final cytoplasmic maturation is the line underneath oocyte membrane constituted by cgs
卵母細胞在成熟和受精過程中,細胞骨架發生一系列明顯的變化,微管是一種重要的細胞骨架成分,對于哺乳動物卵母細胞減數分裂的完成、精子的運動、雌雄原核的結合是必不可少的。In the course of present investigation in interspecific hybrid of tritical crops, cytomixis mas observed at microspore stage, the present investigation deals with detailed analysis of this phenomenon at different conditions
作者在麥類遠緣雜種的減數分裂過程中發現,在減數分裂的前期和小孢子時期均存在核穿壁的現象,並對各種狀態下的穿壁現象進行了詳細的觀察研究。Kuroda ' s first condition was that the size of the uranium deposit should exceed the average length that fission - inducing neutrons travel, about two thirds of a meter
黑田和夫推測出的第一個條件是,鈾礦床的大小,必須超過核分裂所產生的中子所移動的平均長度,約為2 / 3公尺。分享友人