Inbreeding and outbreeding : their genetic and sociological significance / by Edward M. East ... and Donald F. Jones ... 46 illustrations.

  • East, Edward M. (Edward Murray), 1879-1938.
Date:
[1919], ©1919
Catalogue details

Licence: Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)

Credit: Inbreeding and outbreeding : their genetic and sociological significance / by Edward M. East ... and Donald F. Jones ... 46 illustrations. Source: Wellcome Collection.

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    ILLUSTRATIONS FIG. PAGE 1. Asexual Reproduction, an Amœba in Division 21 2. Asexual Reproduction by Means of Runners 22 3. Hermaphroditism in the Tapeworm Proglottid 24 4. Rhopalura, an Example of Extreme Sexual Dimorphism 26 5. Sexual Reproduction in F ucus 26 6. Ulothrix, a Primitive Type of Sexual Reproduction 28 7. An Adaptation for Self-pollination 30 8. An Adaptation for Cross-pollination 34 9. Diagram of Gametogenesis 38 10. Diagram to Illustrate Fertilization 39 11. Formation of Pollen Grains in the Lily 40 12. Fertilization in the Embryo Sac of the Lily 41 13. Entrance of Spermatozoon through Membrane of Egg of Star-fish... 42 14. Diagram Showing the Distribution of Sex Chromosome in Protenor.. 43 15. Identical Quadruplets in Nine-banded Armadillo 44 16. Diagram to Illustrate Inheritance of Sex-Unked Character 48 17. Diagram Showing Union of like Gametes 52 18. Diagram to Illustrate Mendelism in a Cross between Long-Spiked and Short-Spiked Wheat 54 19. Diagram to Illustrate Gamete Formation in a Dihybrid in Indepen¬ dent Inheritance 59 20. Diagram to Illustrate Gamete Formation in a Dihybrid in Linked Inheritance 63 21. Diagram to Illustrate Crossing-over 64 22. Curves Showing the Limiting Values of the Coefficients of Inbreeding with Various Systems of Matings 84 23. Graphs Showing the Total Inbreeding and Relationship Curves for the Jersey Bull, King Melia Rioter 14th 86 24. Graphs Showing the Reduction of Heterozygous Individuals and of Heterozygous Allelomorphic Pairs in Successive Generations of Self-fertiUzation 90 25. Graphs Showing the Increase in the Body Weight with Age for the Males of Inbred Albino Rats 107 26. Graphs Showing the Increase in Weight of Body with Age for Differ¬ ent Series of Male Albino Rats 108 11