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The Cellular Basis of Heredity and Evolution
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adaptation adult allelomorphs amongst animals and plants appear behavior Biol biological biologists body breeding carried cell-plasm cells chance changes chemical chro chromo color crossing cytological Darwin Datura Diagram diploid doctrine dominant Drosophila melanogaster effects embryo emergent evolution environment evidence example experimental experiments explain eyes fact female fertility forms gametes genetic factors germ-cells hereditary heredity human hybrid inbred inbreeding individual inheritance interpretation intersexuality Jour kind known laws living things male materials maturation division mechanistic Mendel's Mendelian ment methods mosomes mutant types mutation theory natural selection normal Oenothera offspring organic original ovary parents physical point mutations polar bodies pollen possible present problem Proc produced race rats recapitulation theory recessive genes relation result scute sex chromosomes shown sort species speculation spermatozoon stages survival takes place tetraploid theory of evolution tion translocation variation Vererb Vries wild-type X-chromosome X-rays