配子減數 的英文怎麼說
中文拼音 [pèizijiǎnshǔ]
配子減數
英文
gametic reduction-
Meiosis, which occurs only in the formation of gametes, is a specialized form of cell division.
僅僅發生在配子形成中的減數分裂是一種特殊形式的細胞分裂。The gametophyte is derived from the product of a reduction division in the megaspore mother cell.
該配子體是由大孢子母細胞進行減數分裂而來。The haploid plant produces gametes mitotically and is thus termed the gametophytes while the diploid plant produces spores meiotically and is called the sporophyte
單倍體植物有絲分裂產生配子體,二倍體減數分裂產生孢子體。Such a gamete may be produced by tetraploid tissues, or it may be the result of faulty meiosis
這樣的配子可能是通過四倍體組織或者是錯誤的減數分裂產生的。Meiotic observation and male gametes development in cytoplasmic male sterile of pepper capsicum annuum l
椒細胞質雄性不育系減數分裂和雄配子發生過程At present most methods employ digital computations and certain correction techniques that minimize instrumental errors.
目前大多數方法是採用電子計算機,同時配合一定的校正技術,以減少儀器誤差。Segregation the separation of the two alleles of a gene into different gametes, brought about by the separation of homologous chromosomes at anaphase 1 of meiosis
分離:同源染色體在細胞減數分裂後期中向細胞極遷移,使等位基因最終分向不同配子。It is due to the lack of homologous pairs of chromosomes, so chromosomes cannot pair in meiosis, and the resulting gametes may have extra or missing chromosomes
這歸因於染色體同系對的缺乏,以至於在減數分裂中染色體不能配對,導致配子有可能有額外或缺失染色體。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。So we present two methods : the mod method by introducing mismatched control vector and the ssp algorithm by partitioning subspaces to reduce the dimensions of adaptive process
為此,我們提出了兩種方法:通過引入失配方向控制向量而得到的最優失配檢測方法和通過子空間劃分而減小自適應維數而得到的子空間投影方法。Secondly, in the first phase, this paper solves the inventory supplement sub - problem through integer programming model, using the reduction of vehicle routes as the breakthrough to this problem, divides a whole distribution region into many customer subsets by radius - circle partitioning method, determines the optimal number of vehicle of service distribution region, applies two practice - oriented conclusions to reduce the number of routes on the basis of customer grouping, thus decreases considerably the variable scale of integer programming, and solves the problem through professional software to fix inventory supplement plan in plan period
其次,在第一階段使用整數規劃數學模型來規劃庫存補充計劃子問題,以減少車輛巡迴路線數目為求解該整數規劃的突破口,提出與固定劃分策略( fpp )相似的客戶分組思想,通過徑?環切割法把整個配送區域劃分成多個客戶子集,實現客戶分組並確定服務整個配送區域的最佳車輛數目。在客戶分組的基礎上建立了精簡路線的整數模型,然後通過運用兩條基於實際經驗的判斷來進一步減少巡迴路線數目,進而極大地減少了整數規劃的變量規模,並利用專業的求解軟體來求解該整數規劃問題,從而確定計劃期的庫存補充計劃。Frequency code is not uniformity distribution and keeps to a probability distribution function defined by the spectral characteristics of the target of interest. the phase code is equally duality pseudo - random sequence and used to reduced the sidelobes of the signal correlation function. and the mismatch - phase sequence is corresponding with the frequency sequence one by one
而頻率編碼為不均勻分佈,由所觀測目標的頻譜信息提取出概率密度函數決定頻率編碼序列的分佈;相位編碼為二元的偽隨機序列,採取均勻的二相編碼,消減同頻脈沖帶來的過高的相關函數的旁瓣;而失配相位為與頻率編碼相一一對應于各子脈沖中。In organisms showing alternation of generations, the gametes may be produced by mitosis in the haploid generation, or by meiosis in the diploid generation and give rise directly to gametes or gamete - producing cells
在表現出明顯世代交替的生物體中,配子可能是由單倍體世代發生有絲分裂產生,亦可由二倍體世代減數分裂直接產生配子體或配子母細胞。Let children correctly know ten numerals of 0 - 9, simple geometric shapes, and simple operation of the addition and subtraction ; put the small numerals and shapes into small house, cultivate children to understand the corresponding relationship each other ; through game, train children ' s ability of practice and thought, spacr imagination and collocation skill
認孩子正確認識0 - 9十位數字,以及簡單的幾何形體,還可以進行簡單的加減運算;把小數字和形狀體投放小房子里,培養孩子理解相互對應的關系;通過游戲,鍛煉孩子動手?腦能力,空間想象力、搭配能力。Let children correctly know ten numerals of 0 - 9, simple geometric shapes, and simple operation of the addition and subtraction ; put the small numrtals and shapes into small house, cultivate children to understand the corresponding relationship each other ; through game, train children ' s ability of practice and thought, space imagination and collocation skill
讓孩子正確認識0 - 9十位數字,以及簡單的幾何形體,還可以進行簡單的加減運算; 2 、把小數字和形狀體投放小房子里,培養孩子理解相互對應的關系; 3 、通過游戲,鍛煉孩子動手動腦能力,空間想象力、搭配能力。By studying the late - time evolution of massive scalar fields in the charged black hole - global monopole background, we find that the asymptotic decay of these fields is dominated by an oscillatory inverse power - law tail, and the decay is faster in the case
我們通過對在單極子荷電黑洞背景中有質量標量場後期演化的研究,發現振蕩反冪函數的衰減方式支配了有質量標量場的後期衰減。The regression equation between base moisture of soil and yield is set up, in which the soil base moisture of previous year is used as a limited factor on the yield of later year, which can forecast a upper limit of the yield with 95 % statistical significance, so the opportunity which appears when the yield determined by user disagrees to the reality, and the degree that fertilizer recommend result tallies reality is improved. the databank of model between yield under fertilizer effect on loess plateau are established, so the system estimate ability is enhanced
系統採用前一年的底墑作為后一年產量的限制因子,建立了底墑與產量的回歸方程,利用統計規律保證利用此方程對產量上限的預測達到95的置信度,以此減少用戶定產時出現不符合事實的機會,提高了施肥推薦與實際生產符合的程度;建立了黃土高原區產量效應模型數據庫,增強了系統的預測能力;採用了兩種肥料分配方案,便於不同的生產者進行選擇。Practical implementations of quantum key distribution systems use attenuated laser pulses as the signal source rather than single photons. the channels used to transmit are lossy. on the basis of above two points, a combining eavesdropping strategy of intercept - resend and beam - splitting is discussed in terms of eavesdropper ' s technology requirement and detection efficiency and dark count of single - photon counter
主要工作包括以下三部分:一、基於實際量子密鑰分配( qkd )系統中所使用的強衰減的激光脈沖不是單光子,量子密鑰分配的通道不是無損耗的,光子計數器存在探測效率和暗計數以及竊聽者的技術能力也不是無限的這些具體問題。By application investigation of mix subsystem in practice, special measure device was produced and substituted the widely used electromagnetic flow meters in order to solve the problem of original coagulant measurement existing in the chemical mixture. this device is simple in structure and apt for automatic control. using this method to realize automatic mixture of chemicals can decrease numbers of system instruments
通過配液子系統在生產實踐中的應用研究,針對藥液自動配兌過程存在的混凝劑原液計量問題製作專用計量裝置取代普遍採用的電磁流量計,該裝置結構簡單、易於實現自動控制,採用這種方式實現自動配液減少了系統採用的儀器儀表數量。Generally meiosis occurs before gamete formation, resulting in the gametes being haploid ( having half the normal number of chromosomes )
在配子形成前通常會發生減數分裂,產生單倍體的配子(染色體數為正常的一半) 。分享友人