tetrads

常見例句

• The tetrads eventually shrivel or are resorbed.
  這種四分體最終萎縮或被再吸收。
• The micronuclei were not observed in tetrad stage .
  四分體階段有微核。
• The other cells of the tetrad undergo degeneration.
  胚囊發(fā)育類型為單孢子蓼型胚囊;
• The microspores in tetrad stage showed tetrahedron structure.
  小孢子四分體為四面體型。
• Which undergoes meitotic division and forms a linear tetrad.
  由孢原細胞直接發(fā)育形成大孢子母細胞。
• Abnormal development was observed at tetrad and mature embryo sac.
  在四分體和成熟胚囊時期觀察到了異常發(fā)育現象。
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