Download or read book Organisers Genes by C onrad H al Waddington written by Conrad Hal Waddington and published by . This book was released on 1947 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Organisers and Genes by C H Waddington written by Conrad Hal Waddington and published by . This book was released on 1940 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Organisers Genes written by Conrad Hal Waddington and published by . This book was released on 1947 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conrad Hal Waddington's Organisers and Genes, published in 1940, is a summary of available research and theoretical framework for many concepts related to tissue differentiation in the developing embryo. The book is composed of two main conceptual sections. The first section explores the action and nature of the organizer, while the second section delves into genes and their influence on development. In this book Waddington explored organizers in terms of their capacity and method of induction. First he examined the nature of induction, discussing crucial experiments concerning the organizer, including Hans Spemann's discovery of the organizer, and his own research into organizers in higher birds and mammals. Waddington separated the action of the organizer into two distinct categories, evocation and individuation, discussed below. The main experimental approach discussed in this book involved grafting organizing tissue from one embryo or region of an embryo to another. Waddington described evocation as non-assimilative induction, or a one-way inducing signal. He presented this as a chemical signal and illustrated evocation with the dead organizer experiment. The dead organizer was shown to be capable of inducing differentiation of neural tissue in the ectoderm. He also included chemical induction by estrogens and steroids as other evocative signals. An important aspect of any signal of evocation, as presented by Waddington, is that the signal is specific to the differentiation of a certain tissue type.
Download or read book Research Catalog of the Library of the American Museum of Natural History written by American Museum of Natural History. Library and published by . This book was released on 1977 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Synopticon written by and published by . This book was released on 1990 with total page 1098 pages. Available in PDF, EPUB and Kindle. Book excerpt: Major philosophical concepts (outlines) with reading lists referring to quotations in vols. of the series Great books of the Western world.
Download or read book Research Catalog of the Library of the American Museum of Natural History 59 11 6 59 1 written by American Museum of Natural History. Library and published by . This book was released on 1978 with total page 830 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The New Encyclop dia Britannica Microp dia written by and published by . This book was released on 1991 with total page 992 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The New Encyclopaedia Britannica Micropaedia written by and published by . This book was released on 1994 with total page 968 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The New Encyclopaedia Britannica written by and published by . This book was released on 1986 with total page 968 pages. Available in PDF, EPUB and Kindle. Book excerpt:
