Project Gutenberg 2024-09-05 Public domain in the USA. 151 Castle, William E. (William Ernest) 1867 1962 Castle, William Ernest Castle, W. E. (William Ernest) Phillips, John C. (John Charles) 1876 1938 Phillips, John Charles 14004274 Piebald rats and selection : $b An experimental test of the effectiveness of selection and of the theory of gametic purity in Mendelian crosses $aWashington, DC :$bCarnegie Institution of Washington, $c1914. Carnegie Institution of Washington publication no. 195 Brian Wilson, Bryan Ness and the Online Distributed Proofreading Team at https://www.pgdp.net (This file was produced from images generously made available by The Internet Archive/Canadian Libraries) "Piebald Rats and Selection" by W. E. Castle and John C. Phillips is a scientific publication written in the early 20th century. This work explores the genetic principles of heredity through experimental tests involving the selection of piebald rats. Its primary focus is on the effectiveness of selection in relation to Mendel's laws, specifically examining the gametic purity within Mendelian crosses. The opening of the text lays a foundation for the investigation into hereditary traits by outlining the significance of Mendelian genetics among biologists. It notes that while there is a general agreement about some aspects of Mendel's theory, significant disagreement exists regarding the nature and function of genetic determiners. The authors describe a multi-year experiment investigating the color patterns of over 25,000 rats aiming to understand how selection influences genetic traits in both positive and negative directions. They introduce the concept of both plus and minus selection series and hint at how their findings challenge prevailing theories regarding pure gametes, setting the stage for detailed empirical results that follow in subsequent chapters. (This is an automatically generated summary.) 20080310021036castle 1914 US Reading ease score: 75.3 (7th grade). Fairly easy to read. en Heredity QH Text Category: Science - Biology 311525 2025-06-29T10:22:21.511411 text/html 283477 2024-09-05T16:19:05 text/html 586673 2025-06-29T10:22:31.659315 application/epub+zip 585493 2025-06-29T10:22:23.304393 application/epub+zip 171950 2025-06-29T10:22:22.307374 application/epub+zip 687313 2025-06-29T10:22:35.348315 application/x-mobipocket-ebook 655197 2025-06-29T10:22:30.857331 application/x-mobipocket-ebook 207168 2025-06-29T10:22:18.973411 text/plain; charset=us-ascii 187070 2024-09-05T16:19:05 text/plain; charset=us-ascii 16455 2025-06-29T10:22:35.506293 application/rdf+xml 8421 2025-06-29T10:22:22.641377 image/jpeg 1665 2025-06-29T10:22:22.473355 image/jpeg 491251 2025-06-29T10:22:21.538401 application/octet-stream application/zip Archives containing the RDF files for *all* our books can be downloaded at https://book.klll.cc/wiki/Gutenberg:Feeds#The_Complete_Project_Gutenberg_Catalog en.wikipedia en.wikipedia