Project Gutenberg 2010-03-07 Public domain in the USA. 253 Stevens, N. M. (Nettie Maria) 1861 1912 Stevens, Nettie Maria Studies in Spermatogenesis (Part 1 of 2) Reading ease score: 53.7 (10th to 12th grade). Somewhat difficult to read. Produced by Bryan Ness, Josephine Paolucci and the Online Distributed Proofreading Team at https://www.pgdp.net. (This file was produced from images generously made available by The Internet Archive/American Libraries.) "Studies in Spermatogenesis (Part 1 of 2)" by N. M. Stevens is a scientific publication written in the early 20th century. The book focuses on the process of spermatogenesis, specifically investigating the so-called "accessory chromosome" and its implications for sex determination in various insect species. Through meticulous examination of spermatogenesis in different insects, the author aims to elucidate the role of chromosomal elements in sex determination and the general mechanisms involved in sperm development. The content of the book comprises detailed observations and methodologies regarding the spermatogenesis of several insect species, including the California termite and the common meal-worm, among others. Stevens provides a comprehensive analysis of the stages of sperm cell development, elucidating the behavior and morphology of chromosomes during mitosis and meiosis, as well as discussions surrounding the existence and nature of the accessory chromosome. The study emphasizes understanding how specific chromatin elements may contribute to the determination of sex in these species, contributing to the broader field of genetics. The observations are grounded in empirical research, with particular focus on chromosomal behavior, staining techniques, and the potential implications for evolutionary biology. (This is an automatically generated summary.) http://www.gutenberg.org/files/31545/31545-h/images/titlepg.jpg en Sex Spermatogenesis QL Text Browsing: Science - Genetics/Biology/Evolution Browsing: Sexuality & Erotica 91131 91125 2025-01-13T05:03:41.044979 2023-09-14T04:46:18.174918 text/html text/html 88401 2021-01-06T06:38:45 text/html; charset=iso-8859-1 1051951 2021-01-06T06:38:45 text/html; charset=iso-8859-1 application/zip 1176748 2025-01-13T05:03:47.674969 application/epub+zip 1176113 2025-01-13T05:03:44.622998 application/epub+zip 115055 2025-01-13T05:03:43.258988 application/epub+zip 1332151 2025-01-13T05:03:49.778933 application/x-mobipocket-ebook 1318161 2025-01-13T05:03:46.772959 application/x-mobipocket-ebook 246449 2022-09-14T12:34:09.761662 application/x-mobipocket-ebook 78433 78204 2025-01-13T05:03:40.608984 2023-09-14T04:46:17.843909 text/plain; charset=us-ascii text/plain 78309 2021-01-06T06:38:45 text/plain; charset=iso-8859-1 26153 2021-01-06T06:38:45 text/plain; charset=iso-8859-1 application/zip 78317 2021-01-06T06:38:45 text/plain; charset=us-ascii 26118 2021-01-06T06:38:45 text/plain; charset=us-ascii application/zip 21951 2025-01-13T05:03:49.902931 application/rdf+xml 17689 2025-01-13T05:03:43.792999 image/jpeg 3983 2025-01-13T05:03:43.523976 image/jpeg 1175835 2025-01-13T05:03:41.077997 application/octet-stream application/zip Archives containing the RDF files for *all* our books can be downloaded at https://www.gutenberg.org/wiki/Gutenberg:Feeds#The_Complete_Project_Gutenberg_Catalog en.wikipedia