If there are two gestational sacs and one is empty, is it possible there was never an embryo in the empty one in the first place, or is it always vanishing twin
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Archive image from page 228 of Cytology, with special reference to. Cytology, with special reference to the metazoan nucleus cytologywithspec00agar 0 Year: 1920 VI] MEIOTIC PHASE IN PLANTS 213 At fertilization the
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