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词汇 megagamete
释义

Definition of megagamete in English:

megagamete

noun ˌmɛɡəˈɡamiːt
  • another term for macrogamete
    Example sentencesExamples
    • Such a mutant megagamete could participate in fertilization with wild type pollens and sometimes set aberrant seeds with twin embryos.
    • During sexual megagametophytic development (with the embryo sac as the megagametophyte and the egg cell as megagamete), a sub-epidermal cell of the nucellus tissue differentiates into a megaspore-mother cell which undergoes meiosis I and II to form four megaspores.
    • The formation of the female gamete (megagamete or egg cell) can be subdivided into two stages, megasporogenesis and megagametogenesis.

Definition of megagamete in US English:

megagamete

nounˌmeɡəˈɡamˌēt
  • another term for macrogamete
    Example sentencesExamples
    • During sexual megagametophytic development (with the embryo sac as the megagametophyte and the egg cell as megagamete), a sub-epidermal cell of the nucellus tissue differentiates into a megaspore-mother cell which undergoes meiosis I and II to form four megaspores.
    • Such a mutant megagamete could participate in fertilization with wild type pollens and sometimes set aberrant seeds with twin embryos.
    • The formation of the female gamete (megagamete or egg cell) can be subdivided into two stages, megasporogenesis and megagametogenesis.
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