The American Naturalist, Volume 44Essex Institute, 1910 - Biology |
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albino algæ animals apogamy appear average behavior bl bl bl blond blue brown brunet cent characters chro chromatin chromosomes color cross cytoplasm determined Diplodocus division dominant embryo Eocene evidence evolution F₂ fact factors families female femur fertilization fishes flowers fusion gametes gametophyte genera genus germ cells gives hair heredity heterozygous hive hybrid hypothesis individuals inheritance intermediate larvæ later male mate melanin Mendelian Miocene mitosis mulatto normal nuclear nucleus number of chromosomes observed occur offspring organs origin oyster pair parents parthenogenetic phenomena piciform pigment plants present probably produced Professor pure purple races regeneration relation represent Sauropoda seed seems segregation selection sexual sexual reproduction shells sires slide spat species specimens sperm spirem spore sporophyte structure synapsis Table theory tion tracheids variability variation varieties Vries yellow