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Elemente der Exakten Erblichkeitslehre: Deutsche Wesentlich Erweiterte Ausgabe in Funfundzwanzig Vorlesungen [Elements of Exact heredity: Much Advanced German Edition in Twenty-Five Lectures]

Series: Cambridge Library Collection - Darwin, Evolution and Genetics

By: Wilhelm Johannsen (Author)

Cambridge University Press

Paperback | May 2015 | #221010 | ISBN-13: 9781108081054
Availability: Usually dispatched within 6 days Details
NHBS Price: £31.99 $40/€38 approx

About this book

Language: German

A reprint of a classical work in the Cambridge Library Collection.

The Danish plant scientist Wilhelm Johannsen (1857-1927) is remembered for his experimental work on plant heredity, and as a founding figure of modern genetics. The terms 'gene', 'genotype' and 'phenotype' were first used by him. The results of his studies on beans supported theories advanced during the 1890s by the Dutch botanist Hugo de Vries, who had unknowingly replicated the work of Gregor Mendel, published in English translation in 1902 (also reissued in this series) by William Bateson. Johannsen's proposal that changes in heredity resulted from sudden mutations rather than from slow processes of natural selection was seen at the time as a threat to Darwinian theory, though later research showed otherwise. This influential book, first published in 1909 (with later editions in 1913 and 1926), is a revised, expanded German translation of a 1905 Danish book by Johannsen, itself based on a journal article originally published in 1903.


Contents

Vorwort

1. Einleitung - Erblichkeit und Variabilitat
2. Die Variationsweite
3. Der Mittelwert
4. Alternative Variation
5. Graphische Methode
6. Uber die Zuverlassigkeit des Mittelwertes der Varianten
7. Erste Orientierung uber die Erblichkeitsfragen
8. Weiteres uber Selektion
9. Reine Linien
10. Beispiele fortgesetzter Selektion in genotypisch einheitlichen reinen Linien
11. Weitere Erfahrungen
12. Abweichende Variationskurven
13. Einseitige Kurven
14. Zwei- und mehrgipfelige Kurven
15. Korrelation
16. Berechnung des Korrelationskoeffizienten mittels Bravais' Formel
17. Korrelation und Regression bei alternativer Variabilitat
18. Betrachtungen uber biologische und praktische Bedeutung der korrelativen Variabilitat
19. Einfachtypus, Komplextypus und Gesamttypus
20. Allgemeine Betrachtungen uber genotypische Festheit und Entstehen genotypischer Anderungen und Neuheiten
21. Einfluss der Lebenslage
22. Kreuzung, Bastarde, Mendel's Entdeckungen und ihre Weiterentwicklung in der Jetztzeit
23. Kompliziertere Falle bei den Bastarden
24. Mutationserscheinungen
25. Ubersicht - Erblichkeitsverhaltnisse beim Menschen

Noten und Literaturangaben
Zusammenstellung der benutzten Zeichen und Formeln
Register
Berichtigungen


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