File:Morgan 1925 fig49.jpg

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Fig. 49. Diagram to illustrate crossing-over

The two mutant characters, black and vestigial, are linked, as are their normal allelomorphs, gray and long. A black vestigial male is mated to a gray long female. The F1 female is back -crossed to the double recessive type, black vestigial. Four kinds of offspring are produced.


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Evolution and Genetics: 1 Different Kinds of Evolution | 2 Four Great Historical Speculations | 3 Evidence for Organic Evolution | 4 Materials of Evolution | 5 Mendel's Two Laws of Heredity | 6 Chromosomes and Mendel’s Two Laws | 7 Linkage Groups and the Chromosomes | 8 Sex-Linked Inheritance | 9 Crossing-over | 10 Natural Selection and Evolution | 11 Origin of Species by Natural Selection | 12 Non-Inheritance of Acquired Characters | 13 Human Inheritance | Figures

Reference

Morgan, T. H. (1925). Evolution and genetics. Princeton: Princeton University Press.


Cite this page: Hill, M.A. (2024, April 16) Embryology Morgan 1925 fig49.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Morgan_1925_fig49.jpg

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