Meiosis in female sex cell initiates later than male. The floral buds which carry egg mother cell (EMC) at diplotene stage has pollen mother cells (PMCs) at tetrad stage of meiosis suggesting protandry. Although the 16 chromosomes formed regular eight bivalents in both the sex cells, they ...
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Chiasma frequencies and distributions were compared in males and females, with and without different types ofB-chromosomes, from four Spanish natural populations ofEyprepocnemis plorans. Mean cell chiasma frequency and mean autosomal chiasma frequency were substantially and significantly lower in females...
1990. A comparative study of chiasmata in male and female Bettongia penicillata (... DL Hayman,MJ Smith,JC Rodger 被引量: 0发表: 1990年 Evidence from the oestrous cycle for male-induced ovulation in Bettongia penicillata (Marsupialia) Female brush-tailed bettongs (Bettongia penicillata) housed...
关键词: Animals Chromosome Mapping Meiosis Triturus Breeding Chromosomes Disorders of Sex Development Sex Characteristics Female Male DOI: 10.1007/s004120050275 被引量: 55 年份: 1997 收藏 引用 批量引用 报错 分享 全部来源 免费下载 求助全文 全文购买 Springer Wiley Semantic Scholar dx.doi.org Europe ...
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At meiosis in the male of the South American species Monodelphis domestica (Marsupialia: Didelphidae) there are some 21 chiasmata per cell and two-thirds of these are interstitial. Interstitial chiasmata are very rare in the female and there are fewer chiasmata per cell. These observations ...
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