208 



Outline of Genetics 



in, 57, 6i, 64, 68, 69, 70, 78; 

 false inheritance of acquired 

 characters in, 31, 177; hybrid 

 vigor in, 157, 161; inheritance 

 of acquired characters in, 18; 

 inheritance of endosperm char- 

 acters in, 145, 146, 148, 151; 

 inheritance of quantitative e char- 

 acters in, 78; linkage in, 97, 

 154; multiple allelomorphs in, 

 112, 119; non-disjunction in, 

 154; sterility in, 132, 134 



Correlation, physical, 81 



Correns, C, 49, 53, 72, 125, 193 



Crossing over, 102, 175 



Crypthybrids, 134 



Cumulative factors, 67, 72, 177 



Cytoplasmic segregation, 123 



Czapek, P., and M. E., 59 



Darwin, Charles, 3, 11, 77, 87, 156 

 Danvin, Erasmus, i 



Datura: non-disjunction in, 114; 



tetraploidy in, 115; triploidy in, 



115 

 Deficiency, 113, 116 

 Degeneration through disuse, 3 

 Determinate variations, 9 

 Determiner, 42, 56 

 Detlefsen, J. A,, 107 



DeVries, Hugo, 6, 11, 84, 86, 87, 

 109, no, 117 



Dictyota, inheritance of acquired 

 characters in, 33 



Dihybrid ratio, 46 



Diploid, 42 



Discontinuous variations, 6 



Diseases, inheritance of, 20 



Dominance, 39; accounting for 



hybrid vigor, 1 73 ; failure of, 53 



Doncaster, L., 14, 15 



Dose, double and single, 44 



Double crossing over, 106 



Duplex, 50 



Duplication, 113, 116 



East, E. M., 57, 61, 64, 78, 84, 93, 

 130, 138, 148, 153, 157, 160, 166 



Elimination factor, 22 



Elodea, sex determination in, 192 



Emerson, E, R., 61, 69, 78, 97, 



107, 119, 152, 153, 154 

 Endosperm, inheritance in, 141; 



hybrid vigor in, 167, 169 



Engler, Arnold, 32 



Envdronment, inheritance of effects 

 of, 23; role in evolution, 2, 3 



Eyster, W. H., 134 



Factor hypothesis, 56, 93 



Farnham, ]\I. E., 114 



Fern prothallia, sex in, 194 



Fittest, survival of, 4 



Fixation of hybrids, 86 



Fluctuating variations, 4, 79, 85, 

 89, 119, 201 



Four-o'clock, blending inheritance 

 in, 53, 72; chlorophyll inherit- 

 ance in, 125 



Frog, sex determination in, 187 



Fruit fly: crossing over in, 107; 

 deficiency in, 113; duplication 

 in, 113; gynandromorphs in, 

 187; _ linkage in, 97, 105; 

 multiple allelomorphs in, 112; 

 mutations in, no; non- 

 disjunction in, 185; sex-lined 

 inheritance in, 184 



Funaria, sex determination in, 191 



Gartner, C. F., 156 



Gal ton, Francis, 12 



Gametophyte, inheritance in, 

 128, 134; sex determination in, 

 190, 196 



Garner, W. W., 132 



Gene, 56, 96, 97 



Gene changes, 109, 119 



Genotype, 45 



Geothe, J., i 



Goldschmidt, R., 200 



Graft-hybrids, 121 



