Excerpt from A Cytological Study of Artificial Parthenogenesis in Strongylocentrotus Purpuratus: A Thesis Submitted in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy in the University of California
The various stages in the formation of spindles and segmentation were followed under the low power of the microscope and embryos were obtained at all stages of development.
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Da: Forgotten Books, London, Regno Unito
Paperback. Condizione: New. Print on Demand. This book examines the cytological changes that occur in the eggs of the sea urchin, Strongylocentrotus purpuratus, after chemical fertilization. The author, the author used a combination of microscopy and staining techniques to track the changes in the egg's nucleus, chromosomes, and cytoplasm during the process of artificial parthenogenesis. The observed changes are compared to those that occur during natural fertilization, providing insights into the mechanisms underlying these two distinct fertilization processes. The findings challenge the prevailing theory that the number of chromosomes in parthenogenetically developing eggs is restored to the full number during subsequent development. The book contributes to our understanding of the fundamental processes of fertilization and early development and provides valuable information for researchers studying these topics. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Codice articolo 9781333350833_0
Quantità: Più di 20 disponibili
Da: PBShop.store US, Wood Dale, IL, U.S.A.
PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000. Codice articolo LW-9781333350833
Quantità: 15 disponibili
Da: PBShop.store UK, Fairford, GLOS, Regno Unito
PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000. Codice articolo LW-9781333350833
Quantità: 15 disponibili