Spermatogenesis And Fecundization of Zamia [microform]
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Spermatogenesis And Fecundization of Zamia [microform]
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In our eReader you can find the full English version of the book. Read Spermatogenesis And Fecundization of Zamia [microform] Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Spermatogenesis And Fecundization of Zamia [microform]
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To quickly assess the difficulty of the text, read a short excerpt:
long by 1.5 mm. wide. The egg nucleus is of enormous size, comparatively, being plainly visible to the unaided eye. It is com- posed of an open, coarse reticulum (fig. 54). So far as the writer has observed, there is no depression or "empfangnisshohle" in the upper part of the nucleus where the sperm nucleus enters, as was found by Ikeno in Cycan (70, p. 585). No special attention has been given to this matter, however, and further observation may show it to be pres- ent. The male nucleus in en...tering the egg nucleus gradually pushes Digitized by Google PBOCESS OF FECUNDATION. 67 into it, as observed by Ikeno in Cycas, and finally becomes entirely surrounded by it. Meanwhile it has changed its structure and become densely granular, differing markedly from the egg nucleus in this particular. Considerable search has been made for indications of extrusions of matter from the sperm or egg nucleus at the time of fecundation, such as has been described by Ikeno in Cycas (70, p. 587).
No indications of such extrusions have been found, however.
What to read after Spermatogenesis And Fecundization of Zamia [microform]?
You can find similar books in the "Read Also" column, or choose other free books by Herbert John Webber to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
long by 1.5 mm. wide. The egg nucleus is of enormous size, comparatively, being plainly visible to the unaided eye. It is com- posed of an open, coarse reticulum (fig. 54). So far as the writer has observed, there is no depression or "empfangnisshohle" in the upper part of the nucleus where the sperm nucleus enters, as was found by Ikeno in Cycan (70, p. 585). No special attention has been given to this matter, however, and further observation may show it to be pres- ent. The male nucleus in en...tering the egg nucleus gradually pushes Digitized by Google PBOCESS OF FECUNDATION. 67 into it, as observed by Ikeno in Cycas, and finally becomes entirely surrounded by it. Meanwhile it has changed its structure and become densely granular, differing markedly from the egg nucleus in this particular. Considerable search has been made for indications of extrusions of matter from the sperm or egg nucleus at the time of fecundation, such as has been described by Ikeno in Cycas (70, p. 587).
No indications of such extrusions have been found, however.
What to read after Spermatogenesis And Fecundization of Zamia [microform]?
You can find similar books in the "Read Also" column, or choose other free books by Herbert John Webber to read onlineMoreLess
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