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process of fertilization, this book has been entirely devoted to reviewing the process of oocyte fertilization at the cellular/molecular level in two different and separ978-3-642-63530-4978-3-642-58301-8Esophagus 发表于 2025-3-22 04:16:55
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neveld .., 1970). The . fertilization of rabbit eggs is also inhibited by incubating capacitated sperm prior to insemination with pancreatic trypsin inhibitor or partially purified rabbit seminal plasma trypsin inhibitor (Zaneveld .., 1971). Similarly the fertilization of frog eggs is blocked when s让步 发表于 2025-3-22 11:30:37
cts of preimplantational development of mammalian embryos in culture have been well reviewed previously (see Biggers ., 1971; Whittingham, 1971, 1975; Brinster, 1972, 1973; Seidel, 1977; Anderson, 1978; Maurer, 1978; Biggers, 1979; Brackett, 1979b; Brinster and Troike, 1979).A保存的 发表于 2025-3-22 15:35:42
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and molecular biology technologies have ensured that the gap has diminished in recent years (e. g. see chapters by Colombo, Kranz; Dumas et al. 1998; Huang et al. 1992; Wagner . 1990). While all plants show the alternation of haploid and diploid generations, the organisms resulting from the gametop胡言乱语 发表于 2025-3-23 09:16:03
is a process involving precise control over cell division and gene expression by the haploid genome. About 20,000 gametophytic genes have been detected, at least 2000 of which are specifically expressed in the mature pollen grain; however, so far, just a small fraction of these genes has been charac