File:Morgan 1925 fig33.jpg
Fig. 33. Section of egg of Calligrapha bigsbyana
a, Section of egg of Calligrapha bigsbyana, showing "germ-cell determinants" (granules), g c d, at posterior end of egg; b, posterior end of a later stage of same, showing primordial germ-cells; c, Section of egg of Miastor, showing single primordial germ-cell at posterior end. (After Hegner.)
Calligrapha Bigsbyana, a Chrysomelid Beetle.
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Morgan (1925) 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
Morgan, T. H. (1925). Evolution and genetics. Princeton: Princeton University Press.
Cite this page: Hill, M.A. (2019, August 21) Embryology Morgan 1925 fig33.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Morgan_1925_fig33.jpg
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