包裹 发表于 2025-3-26 23:42:36
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Gaby S. Graupnerg cytological instability and to assess how far it may be possible to stabilise the cytology of cells in culture or to circumvent this problem. (iii) The availability of haploid cells via anther and pollen culture (Sunderland, 1973a and Nitsch in this volume) requires attention to the potentiality oHEDGE 发表于 2025-3-27 12:29:21
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Gaby S. Graupnerddition the . allele of the I-B sublocus. In an equally simple event, namely, the elaboration of cytotoxic cells, the I-B sublocus matters less, and what is important is the I-A sublocus. It is surprising, then, that H-Y was first observed, not while it performed its pervasive sex-determining role,Leaven 发表于 2025-3-27 18:47:48
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Gaby S. Graupnerint that the funda mental genetic mechanism of speciation is relatively uniform and stereotyped and, in particular, that the ‘allopatric‘ model of its geographic component is universally valid. Certainly, this has been a rather generally accepted viewpoint on the part of students of vertebrate speciation. Wo978-94-010-2250-7978-94-010-2248-4dictator 发表于 2025-3-28 03:53:22
Gaby S. Graupner protein and the role of ligand interaction in T-cell activation remains obscure. We have shown that the consequences of CTLA-4 engagement is the delivery of a negative signal for T-cell response. Thus, the binary view of co-stimulation via B7 should be expanded to include a third signal generated bTRACE 发表于 2025-3-28 08:21:30
http://reply.papertrans.cn/99/9818/981775/981775_39.pngcogitate 发表于 2025-3-28 11:59:01
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