Abstract
Stage 1 begins with fertilization. It invariably occurs in the ampulla tubae, the dilated uppermost loop of the coiled oviduct (Fig. 1). The eggs, after ovulation, are in the metaphase stage of the second maturation division (Fig. 2). They are surrounded by follicle cells, which tend to clump together (Fig. 4). In each ampulla, there are 3 to 5 ova.
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© 1989 Springer Science+Business Media New York
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Theiler, K. (1989). One-celled Egg. In: The House Mouse. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-88418-4_4
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DOI: https://doi.org/10.1007/978-3-642-88418-4_4
Publisher Name: Springer, Berlin, Heidelberg
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