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The Relative Value of the Processes Causing Evolution
Arend Lourens Hagedoorn,Anna Cornelia Hagedoorn
No preview available - 2016
aberrant absence adapted agouti Airedale terrier albino allogamous animals or plants autogamous become pure biomechanical bred breed cause cells chance colour common constitution cross cultivation Darwin descendants determined developmental factors Difflugia dogs Drosophila ecological niche effect environment evident evolution exist fact females fowls gametes genetic Geneticians geno-variation genotype germ-cells group of organisms happen hens heredity heterozygotes heterozygous homozygotes homozygous horn-less horns house-rat hybrids identical influence inheritance instances isolation Java Johannsen lacking loss-mutation Lychnis male material matings mice mutation natural selection normal Norway rat novelties number of genes number of individuals observed Oenothera off-spring origin ovules pangens parents pigmentation plants or animals pollen possible present produced protoplasm pure clones pure lines purity rats recessive result seeds segregation self-fertilized set of genes spontaneous tend things tion total potential variability variation varieties Vries wholly wild species yellow zygote