baur correns (16 resultados)

Gr.-8°, Original-Broschur. Condición: Gut. 385 SS. mit Abbildungen. Unbeschnitten. Umschläge leicht fleckig, mit Randrisschen und teils kleinen Fehlstellen. Bindung von Heft 1 gelockert. Papierbedingt gering gebräunt. Sonst sauber und gut erhalten. Sprache: Deutsch Gewicht in Gramm: 1200.

Condición: VG. Berlin 1922 first edition. Issue of DIE NATURWISSENSCHAFTEN for 21 Juli, 1922. 4to wraps. pp. 623-646. Cover and text lightly evenly toned. no owner marks. VG.

Paperback. Condición: New. Print on Demand. This book analyzes key concepts regarding inherited traits in a species, the malleability of these traits, and their transmissibility. Within the broader context of the theory of evolution, the text explores the groundbreaking research of August Weismann on germ plasm and the related work of other biologists. The author examines the experiments of geneticists such as Hugo de Vries and Thomas Hunt Morgan, whose discoveries provided evidence for the Mendelian theory of inheritance. The text also delves into more recent research, such as the work of Richard Goldschmidt on the induction of heritable changes in fruit flies through environmental influences. By exploring the history of genetics, the author illuminates the complex relationship between heredity and environment, providing a deeper understanding of the mechanisms that shape the diversity of life. 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.

Paperback. Condición: New. Print on Demand. This book details the meticulous examination of the author, as the author explores the differentiation of pigment within the feathers of chickens. This work contributes to the field of comparative biology, specifically ornithology, by describing the characteristics of chicken feather pigments in exacting detail. Through the author's methods, a comprehensive differentiation of size, form, and color of pigment is presented. Furthermore, the author's research adds insight into the color variation seen in chickens. 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.

Paperback. Condición: New. Print on Demand. This book explores the theoretical implications and terminology of genetic phenomena in haploid organisms, focusing on parthenogenetic offspring of hybrid parents. The author argues that the reduction division during gamete formation is the mechanism underlying the Mendelian principles of segregation and recombination. Through detailed analysis of experimental evidence from research on Chlamydomonas, Phycomyces, and honeybees, the book demonstrates that haploid parthenogenetic progeny exhibit Mendelian segregation, providing experimental proof that reduction division causes genetic recombination. This groundbreaking work establishes the significance of haploid organisms in genetic research and provides valuable insights into the role of chromosomes as carriers of genetic material. 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.

Paperback. Condición: New. Print on Demand. This book in the biological sciences delves into the variations that exist within species. The author investigates the complex ways in which traits are passed from one generation to the next and how these variations contribute to the evolutionary process. By exploring topics such as mutation, variation, heredity, and natural selection, the text provides a comprehensive understanding of the mechanisms driving the diversity of life on Earth. Through the exploration of both theoretical and practical approaches, this book offers a valuable resource for students and researchers in biology, as well as anyone interested in the intricate tapestry of life and its endless capacity for change and adaptation. 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.

Softcover. Condición: Gut bis sehr gut. Ohne Schutzumschlag. 1. Auflage. Die Naturwissenschaften 10.Jg. Heft 29. Mit 1 Bidnis Mendels. (1), S.623-646. Rückenfalz. Papierbedingt leicht gebräunt und im Randbereich etwas brüchig, sonst sehr gut erhalten. Keinerlei Stempel oder Anmerkungen.

Paperback. Condición: New. Print on Demand. This book explores the phenomenon of self-sterility in plants, focusing on the species Veronica syriaca. The author provides the results of their extensive study of this plant and establishes that its self-sterility is heritable, fitting with Mendelian patterns of inheritance. This thorough analysis of a single plant species contributes to our understanding of the diversity of self-sterility mechanisms within the plant kingdom and sets the stage for further exploration of the genetic basis of this trait. 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.

Paperback. Condición: New. Print on Demand. This book posits that there are determinant factors in the development of external animal characteristics which are heritable, and that these factors can be analyzed using developmental biology. The author avers that there is a basic regularity in how these factors work in differing animal characteristics. Simply put, characteristics with basic, determined early development show clear division patterns. Features with complex, correlated development often show uncertain dominance and hybridization variability, along with anomalous quantity ratios. Through this new approach, the author uncovers previously hidden biological truths about the mechanisms of inheritance. 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.

Paperback. Condición: New. Print on Demand. This book presents insights into the study of heredity and genetic inheritance, merging the fields of biology and mathematics. Through research spanning three disciplines (biology, statistics, and mathematics), the author explores concepts of evolution and population genetics to illustrate that Mendel's laws can be applied to a range of organisms. The author argues that these concepts, often taught separately, can be usefully integrated to understand genetic inheritance and variation. This book offers a unique perspective on the entanglement of biology and the exact sciences. 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.

Paperback. Condición: New. Print on Demand. This book examines viticulture through the lens of genetics. The author uses cross-breeding experiments with grape varieties to shed light on the genetic basis of traits like disease resistance, productivity, and wine quality. The author also delves into the history of grape cultivation and the role of genetics in the development of different grape varieties. The book provides a comprehensive overview of the genetic principles underlying viticulture and highlights the potential for using genetic knowledge to improve grape production and wine quality. 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.

Paperback. Condición: New. Print on Demand. This book presents a unique analysis of genetic mutations found in the X chromosome of the fruit fly, Drosophila melanogaster. This species has been a cornerstone of biological research for a century, yet novel insights continue to be discovered, highlighting the power of longstanding model organisms. The author carried out a meticulously designed series of experiments to pinpoint the location of two mutations â" singed and forked â" within the X chromosome, using recombination analysis and linkage tests. Surprisingly, the author found that singed and another mutation, singed2, are mimic mutations â" they both produce similar alterations in the bristles and hairs of the fly â" but they are located at distinct loci. Forked also has two alleles that produce similar phenotypes. These findings challenge the widely held assumption that similar mutations in different genes will occur at the same location. The author's innovative research reveals the complexities of the genetic architecture of the X chromosome and the nuances of interpreting mutational events. This book offers a valuable resource for geneticists and evolutionary biologists alike. 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.

Paperback. Condición: New. Print on Demand. This book explores the complex topic of equine coat color inheritance patterns in horses, particularly focusing on the three main colors: black, bay (brown), and chestnut (red). The author employs a straightforward, accessible style while delving deep into the subject. The book's significance lies in its ability to clarify misconceptions surrounding equine coat color inheritance that persisted for decades, shedding light on the genetic complexities that determine a horse's appearance. 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.

Paperback. Condición: New. Print on Demand. This book critically examines the work of renowned geneticist Theodor Boveri, known for his influential theory on chromosomes. The author presents a comprehensive analysis of Boveri's research, exploring the historical context of his discoveries and their significance within the broader field of genetics. Through a detailed examination of Boveri's experiments and observations, the book delves into the complex relationship between chromosomes and heredity, shedding light on the fundamental principles of cell division and the mechanisms responsible for the transmission of genetic information. The author's meticulous analysis not only provides a deeper understanding of Boveri's groundbreaking work but also highlights its enduring legacy in shaping our current understanding of genetics and cell biology. 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.

Paperback. Condición: New. Print on Demand. This book surveys the complex topic of sex determination across a variety of higher plant species, starting from fundamental observations and progressing to modern insights into the genetic and environmental factors that affect an individual's eventual sex. The author analyzes the different stages of sex determination, moving from simple systems like mixed-sex mosses to more complex mechanisms in flowering plants. The impact of Realisator genes, which influence sexual organ formation, is highlighted, along with the role of Reducational Division in solidifying an individual's sex. Supported by detailed research and case studies, the book provides critical insight into both typical and atypical sex determination processes in higher plants, opening up new avenues for future research. 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.

Mit z.T. farbigen Abbildungen im Text und auf Tafeln, neuere Bibliotheks-Halbleinenbände, Groß-8°. - Titel-Recto jeweils mit Bibliotheks-Stempel; gute Exemplare.