oriented meiotic division的用法和樣例：
例句
- Since crossing over can occur during the first meiotic division, it does allow for some genetic variation in the offspring.
在第一次減數分裂的過(guò)程中可以發(fā)生交換現象，因而在后代中有遺傳變化。 - The processes of meiotic division of pollen mother cells were compared between male sterile plants and male fertile ones.
摘要以蘿卜雄性不育株與可育株為試材，比較研究了不育與可育花粉母細胞的減數分裂過(guò)程。
