| 1. | The time at which the two reductive divisions occur is not necessarily coincident to the time of ovulation .
两次减数分裂的时间不一定与排卵时间相一致。 |
| 2. | Observation on meiotic division of pollen mother cell and pollen vigor assessment for four species of ceratoides
驼绒藜属4种植物花粉母细胞减数分裂的观察及花粉活力的测定 |
| 3. | Chromomere a small beadlike deeply staining structure seen in chromosomes during prophase of mitosis and meiosis
染色粒：在有丝分裂及减数分裂的前期存在于染色体上的小念珠状的着色深的结构。 |
| 4. | Since crossing over can occur during the first meiotic division , it does allow for some genetic variation in the offspring
在第一次减数分裂的过程中可以发生交换现象，因而在后代中有遗传变化。 |
| 5. | Chromatid one of a pair of replicated chromosomes found during the prophase and metaphase stages of mitosis and meiosis
染色单体：在有丝分裂和减数分裂的前期和中期一对已经复制了的染色体中的一个。 |
| 6. | Cytomixis in pollen mother cells usually occured at prophase of meiosis i , but this phenomenon was observed at other stages occasionally
花粉母细胞间染色质穿壁转移大多发生在减数分裂的前期联会时期，偶尔也有在其他时期发生的。 |
| 7. | In this study , the meiotic progression and its control by hypoxanthine were studied in the goat oocytes aspirated from slaughtered ovaries
本实验以随机屠宰山羊卵巢为材料研究了山羊卵母细胞减数分裂的进程以及hx在这一过程中的调控作用。 |
| 8. | The competence of oocytes to utilize hx and produce this meiosis - inhibiting substance lasted only a limited period ( 4h in this case ) , and after this time oocytes became incompetent 8
卵母细胞在培养4h之前可以代谢hx并产生抑制减数分裂的物质， 4h之后即不具备这种能力。 |
| 9. | Aneuploidy the condition , resulting from nondisjunction of homologous chromosomes at meiosis , in which one or more chromosomes are missing from or added to the normal somatic chromosome number
非整倍性：在减数分裂的过程中同源染色体不分离而造成的一条或多条染色体的缺失或增加。 |
| 10. | 05 ) , and had the tendency of increase as radiation frequency increased . the effect of low dose ionizing radiation on meiosis chromosome non - disjunction was remarkable from 2 gy ( p < 0
05 ） ，且具有随照射次数的增加染色体不分离增加的趋势；小剂量电离辐射对减数分裂的影响是从zgy开始，染色体不分离较对照增加（尸0 |
