Download or read book Sex Linked Inheritance in Drosophila Primary Source Edition written by Thomas Hunt Morgan and published by Nabu Press. This book was released on 2014-02 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.
Download or read book Sex linked Inheritance in Drosophila written by Thomas Hunt Morgan and published by . This book was released on 1916 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sex linked inheritance in Drosophila written by Thomas Hunt Morgan and published by . This book was released on 1916 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book SEX LINKED INHERITANCE IN DROS written by Thomas Hunt 1866-1945 Morgan and published by . This book was released on 2016-08-28 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sex Linked Inheritance in Drosophila Classic Reprint written by Thomas Hunt Morgan and published by . This book was released on 2015-07-21 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Sex-Linked Inheritance in Drosophila Although the ratio of 3 to 1 in which contrasted characters reappear in the second or F generation is sometimes referred to as Mendel's Law of Heredity, the really significant discovery of Mendel was not the 3 to 1 ratio, but the segregation of the characters (or rather, of the germinal representatives of the characters) which is the underlying cause of the appearance of the ratio. Mendel saw that the characters with which he worked must be represented in the germ-cells by specific producers (which we may call factors), and that in the fertilization of an individual showing one member of a pair of contrasting characters by an individual showing the other member, the factors for the two characters meet in the hybrid, and that taken the hybrid forms germ-cells the factors segregate from each other without having been contaminated one by the other. In consequence, half the germ-cells contain one member of the pair and the other half the other member. When two such hybrid individuals are bred together the combinations of the pure germ-cells give three classes of offspring, namely, two hybrids to one of each of the pure forms. Since the hybrids usually can not be distinguished from one of the pure forms, the observed ratio is 3 of one kind (the dominant) to 1 of the other kind (the recessive). There is another discovery that is generally included as a part of Mendel's Law. We may refer to this as the assortment in the germ-cells of the products of the segregation of two or more pairs of factors. If assortment takes place according to chance, then definite F ratios result, such as 9:3:3:1 (for two pairs) and 27:9:9:9:3:3:3:1 (for three pairs), etc. Mendel obtained such ratios in peas, and until quite recently it has been generally supposed that free assortment is the rule when several pairs of characters are involved. But, as we shall try to show, the emphasis that has been laid on these ratios has obscured the really important part of Mendel's discovery, namely, segregation; for with the discovery in 1906 of the fact of linkage the ratios based on free assortment were seen to hold only for combinations of certain pairs of characters, not for other combinations. But the principle of segregation still holds for each pair of characters. Hence segregation remains the cardinal point of Mendelism. Segregation is to-day Mendel's Law. Linkage and Chromosomes. It has been found that when certain characters enter a cross together (i.e., from the same parent) their factors tend to pass into the same gamete of the hybrid, with the result that other ratios, than the chance ratios described by Mendel are found in the F generation. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works."
Download or read book Sex Linked Inheritance in Drosophila written by Thomas Hunt Morgan and published by Andesite Press. This book was released on 2015-08-12 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book Sex linked Inheritance in Drosophila written by Calvin B. Bridges and published by . This book was released on 1800 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sex Linked Inheritance in Drosophila written by Thomas Hunt Morgan and published by Carveth Press. This book was released on 2009-12 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many of the earliest books, particularly those dating back to the 1900s and before, are now extremely scarce and increasingly expensive. We are republishing these classic works in affordable, high quality, modern editions, using the original text and artwork.
Download or read book SEX LINKED INHERITANCE IN DROS written by Thomas Hunt 1866-1945 Morgan and published by Wentworth Press. This book was released on 2016-08-28 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book Experiments in Plant Hybridisation written by Gregor Mendel and published by Cosimo, Inc.. This book was released on 2008-11-01 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiments which in previous years were made with ornamental plants have already afforded evidence that the hybrids, as a rule, are not exactly intermediate between the parental species. With some of the more striking characters, those, for instance, which relate to the form and size of the leaves, the pubescence of the several parts, etc., the intermediate, indeed, is nearly always to be seen; in other cases, however, one of the two parental characters is so preponderant that it is difficult, or quite impossible, to detect the other in the hybrid. from 4. The Forms of the Hybrid One of the most influential and important scientific works ever written, the 1865 paper Experiments in Plant Hybridisation was all but ignored in its day, and its author, Austrian priest and scientist GREGOR JOHANN MENDEL (18221884), died before seeing the dramatic long-term impact of his work, which was rediscovered at the turn of the 20th century and is now considered foundational to modern genetics. A simple, eloquent description of his 18561863 study of the inheritance of traits in pea plantsMendel analyzed 29,000 of themthis is essential reading for biology students and readers of science history. Cosimo presents this compact edition from the 1909 translation by British geneticist WILLIAM BATESON (18611926).
Download or read book The Mechanism of Mendelian Heredity written by Thomas Hunt Morgan and published by Legare Street Press. This book was released on 2022-10-27 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book The Genome of Drosophila Melanogaster written by Dan L. Lindsley and published by Academic Press. This book was released on 2012-12-02 with total page 1144 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dedicated to the memory of George Lefevre in recognition of his exhaustive cytogenetic analysis of the X chromosome, The Genome of Drosophila melanogaster is the complete compendium of what is known about the genes and chromosomes of this widely used model organism. The volume is an up-to-date revision of Lindsley and Grell's 1968 work, Genetic Variations of Drosophila melanogaster. The new edition contains complete descriptions of normal and mutant genes including phenotypic, cytological, molecular, and bibliographic information. In addition, it describes thousands of recorded chromosome rearrangements used in research on Drosophila. This handbook and its accompanying polytene chromosome maps, are sturdily bound into the book as foldouts and available as a separate set, are essential research tools for the Drosophila community. Describes phenotype, cytology, and molecular biology of all recorded genes of Drosophila melanogaster, plus references to the literature Describes normal chromosome complement, special chromosome constructs, transposable elements, departures from diploidy, satellite sequences, and nonchromosomal inheritance Describes all recorded chromosome rearrangements of Drosophila melanogaster as of the end of 1989 Contains the cytogenetic map of all genes as of mid-1991 Contains the original polytene maps of C.B. Bridges, plus G. Lefevre's photographic equivalents, and the detailed maps of the chromosome arms produced by C.B. and P.M. Bridges All maps are reprinted as high-quality foldouts sturdily bound into the volume Maps may also be purchased separately in an eight-map packet, for laboratory and student use
Download or read book Drosophila Genetics written by Ulrich Graf and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Biological Sciences are in the midst of a scientific rev olution. During the past decade under the rubric of molecu lar biology, chemistry and physics have assumed an integral role in biological research. This is especially true in ge netics, where the cloning of genes and the manipulation of genomic DNA have become in many organisms routine laboratory procedures. These noteworthy advances, it must be empha sized, especially in molecular genetics, are not autonomous. Rather, they have been accomplished with those organisms whose formal genetics has been documented in great detail. For the beginning student or the established investigator who is interested in pursuing eukaryote molecular genetic re search, Drosophila melanogaster, with its rich body of formal genetic information is one organism of choice. The book "Drosophila Genetics. A Practical Course" is an indispens able source of information for the beginner in the biology and formal genetics of Drosophila melanogaster. The scope of this guide, a revision and enlargement of the original German language version, is broad and instructive. The information included ranges from the simple, but necessary, details on how to culture and manipulate Drosophila flies to a series of more sophisticated genetic experiments. After completing the experiments detailed in the text, all students - neophyte or experienced - will be richly rewarded by having acquired a broad base of classical genetics information relevant for the biologist in its own right and prerequisite to Drosophila genetics research - formal and/or molecular. Davis, California, Melvin M.
Download or read book Fly Pushing written by Ralph J. Greenspan and published by CSHL Press. This book was released on 2004 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: A second edition of the classic handbook has become a standard in the Drosophila field. This edition is expanded to include topics in which classical genetic strategies have been augmented with new molecular tools. Included are such new techniques as homologous recombination, RNAi, new mapping techniques, and new mosaic marking techniques.
Download or read book Sperm Biology written by Scott S. Pitnick and published by Academic Press. This book was released on 2008-11-21 with total page 683 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sperm Biology represents the first analysis of the evolutionary significance of sperm phenotypes and derived sperm traits and the possible selection pressures responsible for sperm-egg coevolution. An understanding of sperm evolution is fast developing and promises to shed light on many topics from basic reproductive biology to the evolutionary process itself as well as the sperm proteome, the sperm genome and the quantitative genetics of sperm. The Editors have identified 15 topics of current interest and biological significance to cover all aspects of this bizarre, fascinating and important subject. It comprises the most comprehensive and up-to-date review of the evolution of sperm and pointers for future research, written by experts in both sperm biology and evolutionary biology. The combination of evolution and sperm is a potent mix, and this is the definitive account. The first review survey of this emerging field Written by experts from a broad array of disciplines from the physiological and biomedical to the ecological and evolutionary Sheds light on the intricacies of reproduction and the coevolution of sperm, egg and reproductive behavior
Download or read book Sex linked Inheritance in Drosophila written by Thomas Hunt Morgan and published by DigiCat. This book was released on 2022-08-10 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: The following book was written by Thomas Hunt Morgan and Calvin Bridges, and made the former world-famous. It was in the studies covered in the following publication that Morgan discovered that genes are carried on chromosomes and are the mechanical basis of heredity. These discoveries formed the basis of the modern science of genetics; and he would later win the Nobel Prize in Physiology or Medicine in 1933 for his findings.
Download or read book Mammalian Genetics written by William Ernest Castle and published by . This book was released on 1940 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heredity in general; Mendelian inheritance; Modified mendelian ratios; Linkage, as illustrated in the study of rabbit genes; Known genes of rodents other than the rabbit; Hybridization and hybrid vigor; Self-sterility; Bipolar sexuality; Sex differentiation; Sex determination; Sex-linked inheritance in drosophila and in mammals; Inheritance of blood groups in man and rabbit; Dominance; Multiple alleles; Lethal genes; Balanced lethals; Genes having pathological effects - "sublethal" genes; Maternal inheritance; The inheritance of body size; Variation and selection; Quantitative characters; Pure lines; Major contributions of fish genetics; The more important gene mutations of domestic mammals.
