genetic composition 中文意思是什麼

genetic composition 解釋
原生成分
  • genetic : adj. 1. 遺傳(學)上的。2. 發生的,發展的;創始的。adv. -ically
  • composition : n 1 作文(法),作詩(法),作曲(法);作品,文章;樂曲;文體,措辭。2 編制;結構,構造,組成,...
  1. The results show that : 1 ) though the water environment of nanyisan is more muddy than others, algal can still grow ; 2 ) the composition and rock type of the algal limestone are complex, the main rock types include lettuce - like stromatolites, algal reef, digitate stromatolies, wave - like stromatolites and so on ; 3 ) the deposits of algal limestones were formed in low - energy peritidal to subtidal high - energy environment of lakeshore slopes, sliding under the action of gravity and some other factors and become slump mixosedimentite layers ; 4 ) the physical property of algal limestones layers is better than others ; 5 ) the genetic development of the sediment decides that the single deposit is small, distributive and thin - layed

    結果表明,南翼山藻灰巖沉積水體環境相對渾濁,但藻類仍能生長;該區藻灰巖巖石組成及類型復雜,主要的藻灰巖巖石類型有包心菜狀疊層石、藻礁、指狀疊層石、水平波狀疊層石等;其主要為濱岸斜坡上低能潮上環境至高能潮下環境形成的沉積體,在重力等因素的作用下產生滑動或滑塌形成的微生物成因的滑塌混積巖;巖層物性好於其它巖層;藻灰巖層的成因決定了該地區單個沉積體規模小、分散、層薄。
  2. Using isotopic ( d, 18o 14c ) geochemical methods, this paper has studied the genetic relationship between the isotopic composition of meteoric water and that of underground hot water, analyzed the supply source of the kaifeng geothermal field and the generation of the geothermal water, and calculated its formation age

    摘要應用同位素( d 、 18o 、 14c )地球化學方法,研究大氣降水和地下熱水中同位素組成之間成因關系,分析開封地熱田中地熱水補給來源方向和地熱水的形成,計算其生成年齡。
  3. In summary, the exotic species can affect native bird species in four main ways, 1 ) predation of birds or eggs by the exotic mammals ; 2 ) competition for habitats and foods with exotic birds, and loss of genetic diversity by hybridization with the closely - related exotic species ; 3 ) direct and indirect alterations of native habitats and food resources, and predation by the exotic invertebrates ; and 4 ) loss and fragmentation of habitats for native birds through altering species composition and structure of native plant communities by exotic plants

    外來生物對鳥類的影響主要表現在以下幾方面: ( 1 )外來哺乳動物對成鳥、幼鳥或鳥卵的捕食作用; ( 2 )外來鳥類與本地鳥類競爭棲息地和食物資源,與當地的近緣種雜交而造成基因流失; ( 3 )外來無脊椎動物改變本地鳥類的棲息環境和食物狀況,甚至直接捕食本地鳥類; ( 4 )外來植物入侵改變入侵地的植物群落組成和結構,造成本地鳥類的棲息地喪失或破碎化,並通過改變入侵地生態系統的食物鏈結構而對高營養級的鳥類產生影響。
  4. The obtained haplotypes are compared, aligned and analyzed by dna sequence analysis software package dnastar, dnasp, mega, to calculated residue composition, polymorphic sites and genetic distance, to consider the types and rates of residus substitution and to create neighbor - joining ( nj ) phylogenetic trees and determine phylogeny of the classification taxa involved in the research. 5

    5 、盲榕科昆蟲cytb基因序列分析方法和分析結果直接反映著被試分類單元的遺傳物質的差異和遺傳本質,是最為客觀的系統分類依據,所以可應用於盲峙科的種類的鑒別、種群的分析、種上類群的劃分以及科級階元水平系統發育關系的確定。
  5. An organism consisting of two or more tissues of different genetic composition, produced as a result of mutation, grafting, or the mixture of cell populations from different zygotes

    嵌合體由兩種或兩種以上有不同基因結構的組織所構成的有機體,由於突變、嫁接或來自不同合子的細胞群體相混合而產生。
  6. Complete co i sequence, co ii sequence and co i + ii sequence were used for comparison. nucleotide composition and variation of each sequence fragment were analyzed using mega2. 1. genetic relationships among haplogenotypes were estimated based on the pair - wise matrix of sequence divergences by kimura ' s two - parameter

    第1180一1569位區段分子樹表明黃紋鱗石蛾與弓突鱗石蛾的親緣關系較近,與根據形態學建立的系統關系相吻合。
  7. Then two novel algorithms, samples division based heuristic genetic bp and composition structure learning, are proposed. simulations are performed respectively

    提出了樣本劃分啟發式遺傳bp演算法和復合結構學習方法( csl ) ,並進行了模擬實驗。
  8. The paper summarizes research advances about the developments of somatic embryos in several conifers, which have appeared at home and abroad in recent years, mainly in the effects of medium components in tissue culture and aba on the development of somatic embryos, and cytology, programmed cell death, genes and protein composition related to the development of somatic embryos, and further discusses the developmental mechanisms of somatic embryos and the role of somatic embryos in genetic transformation system

    本文綜述了近年來國內外有關裸子植物中幾種松杉類植物體細胞胚發育過程的研究報道,其中主要涉及培養基成分和脫落酸( aba )對體細胞胚發育的影響,以及體細胞胚發育在細胞學、細胞程序性死亡、相關基因和蛋白質組學等方面的研究進展,並進一步討論了松杉類植物體細胞胚的發育機理,以及體細胞胚在遺傳轉化系統中的作用。
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