The Relative Value of the Processes Causing Evolution (Classic Reprint) - Couverture souple

Arend L. Hagedoorn

 
9781331917700: The Relative Value of the Processes Causing Evolution (Classic Reprint)

Synopsis

Evolution and genetics, clarified: this book argues for an integrated view of how genes shape life over time. It surveys how genetics has become a disciplined science, moving beyond single-cause theories to connect facts from zoology, botany, and breeding. The author compares Darwin’s broad perspective with later ideas about variation, selection, and mutation, showing why a single mechanism cannot explain evolution.

1) A clear, evidence-based discussion of how genetics developed as a field.
2) Explanations of how different scientists framed variation, inheritance, and evolution.
3) Examples of sex-linked and multi-gene traits that illuminate complex inheritance.
4) A look at how local and residual populations influence species over time.

- Learn how genetics moved from isolated ideas to a cohesive, inductive science.
- See why researchers now emphasize correlating facts across disciplines.
- Understand the limits of one-cause theories and the value of multiple processes.
- Explore real-world examples that illustrate how genes affect traits and evolution.

Ideal for readers curious about the history and practice of genetics in evolution, and for those seeking a practical, non-technical overview of how inheritance shapes species.

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Présentation de l'éditeur

The origin of species, the way in which evolution has taken place and is still progressing, seems, even now, to remain an open question. So much so, that three absolutely diverse theories of evolution still find their adherents. These three main theories are so different, that it would seem as if the real nature of the process of species-formation must for ever remain a subject for speculation only, and as if good facts are wholly wanting. A minority of Biologists adhere to Lamarck stheory of the inheritance of adaptative changes induced by the environment ;some incline to the view of Darwin and Weismann, that natural selection on small, individual variations gradually changes species, and still others believe with de Vries, that new species spring into being spontaneously, by mutation, saltation. Judging from this diversity of opinion, it would certainly seem as if no important headway had been made since Darwin. This is very surprising, when we see how in the last fifteen years Genetics has become established as an actively developing branch of science, and counts by hundreds the Biologists who are engaged in genetical experimental investigations. All the data thus acquired, should have their significance for an insight into the process of evolution, the origin of species. This reluctance on the part of Biologists in general, and of Geneticists specially, to make an attempt to correlate the facts so far obtained, and to find out whether they shed any new light on the problem how new species may originate, is caused mainly, we hope, by the very diversity of the three above-named evolution-theories.
(Typographical errors above are due to OCR software and don't occur in the book.)

About the Publisher

Forgotten Books is a publisher of historical writings, such as: Philosophy, Classics, Science, Religion, History, Folklore and Mythology.

Forgotten Books' Classic Reprint Series utilize

Présentation de l'éditeur

This is a pre-1923 historical reproduction that was curated for quality. Quality assurance was conducted on each of these books in an attempt to remove books with imperfections introduced by the digitization process. Though we have made best efforts - the books may have occasional errors that do not impede the reading experience. We believe this work is culturally important and have elected to bring the book back into print as part of our continuing commitment to the preservation of printed works worldwide. This text refers to the Bibliobazaar edition.

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