alternation of generations 中文意思是什麼

alternation of generations 解釋
世代交替
  • alternation : n. 1. 交替，更迭，變換；間隔。2. 【數學】錯列。3. 【植物；植物學】交錯。4. 【農業】輪種。
  • of : OF ＝Old French 古法語。
  • generations : 產生，發生；世代
  1. Like thallose liverworts, the hornworts have an alternation of generations in which the gametophyte is a dorsiventral flattened green phallus and the saprophyte is an upright structure that has a foot embedded in the gametophytes, from which it draws nutrition

    與葉狀體植物地錢一樣，角苔具有明顯的世代交替， ，配子體在世代交替中占優勢，孢子體佔劣勢且利用其基足插入配子體的組織中吸取養料，以供孢子體生長。
  2. They show a heteromorphic alternation of generations, the gametophyte eging the dominant generation

    苔蘚植物具有明顯的世代交替現象，配子體在世代交替中占優勢。
  3. The concept of an alternation of generations can be extended to the flowering plants, in which the embryo sac and pollen represent the much reduced famale and male gametophyte generations respectively

    這個概念也可以運用在有花植物上，由胚囊和花粉各自表達雌雄配子體世代。
  4. 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。
  5. Alternation of generations the occurrence of two, or occasionally more, generations during the life cycle of an organism

    世代交替：有機體生活史中出現二個或者兩個以上世代的現象。
  6. Hofmeister, wilhelm friedrich benedict ( 1824 - 77 ) german botanist who first demonstrated the alternation of generations in lower plants

    霍夫美施塔：是德國植物學家，第一個發現低等植物中具有世代交替的現象。
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