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...
Mean chiasma frequencies Table I gives the mean cell chiasma frequencies of male and female grasshoppers having different numbers of B-chromosomes, (OB, lB. 213) from the four natural populations sampled. These means are based on variable numbers of insects (n), which are also given in ...
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 ...
Conductor Material:Copper / Pure Copper;Color:Black / White / Gray / Blue / Silver / Gold / Yellow / Red;Application:Communication / RF / Outdoor Indoor / Aerial / Industrial / Electronic;Gender:Female / Male / Men;Insulation material:PVC / No / PE;Mater
(1990) A comparative study of chiasmata in male and female Bettongia penicillata (Marsupialia). Genetica 83, 45^9.Hayman DL, Smith MJ, Rodger JC. 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 ...
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