642 



SUBJECT INDEX 



References, 571 



and manuals useful in cytogenetics, 503 

 Refrigeration of cells in vitro with liquid nitrogen, 



510 

 Regression 



offspring-parent, 201 

 of litter size following radiation, 139 

 Regular mating systems, 8 



Relationship between genome, external environ- 

 ment, and observed characters, 160 

 Relative biological effectiveness, 128 

 Relative heterozygosis, recurrence equation for, 



49 

 Replica plating, 408 

 Replicative homologs, 178 

 Reproductive efficiency and rate of ovulation, 



276 

 Reproductive performance, 138 



following radiation, 133 

 Reproductive physiology, genetics of, 269 

 Repulsion 



intercross in, 59 

 phase of linkage, 57 

 Requirements, nutritional, of cells in vitro, 



451 

 Residual heterozygosis and resistance to induced 



sarcomas, 436 

 Resin-paper analysis, 322 

 Resistance 



disease, transmission of, 386 

 drug, 460, 468 



and hormonal independence, 437 

 and karyotype, 440 

 of tumor cells, 423 

 mechanisms, relationship to X-ray irradiation, 



396 

 of cells in vitro to antimetabolites, 423 

 phage, clonal variance of mutations to, 408 

 to disease, historical sketch, 400 

 to infection, selection for, 401 

 to murine typhoid, 384 

 Response, second-set, 429 

 Retinal degeneration, 219 

 Retrograde analysis, 222, 227 

 of metabolic deviation, 220 

 Response to selection, 21 1 

 Reverse-lighting patterns in animal breeding 



rooms, 154 

 Rex, 75 

 Ribonuclease, use of in preparing chromosomes, 



479 

 Ricin, route of entry and survival of mice 



inoculated with, 395 

 Rodless retina (r), 11 

 Route of entry and survival of mice inoculated 



with ricin, 395 

 Route of infection, relation to severity of disease, 



393 

 ru, 72 



Ruby, 64, 77 

 Ruby eye, 58 



Rules, international for nomenclature, 517 



Saline agglutination, 349, 357 

 Salmonella gallinarum, 403 

 Salmonella, mortality of mice from, 392 

 Salmonella typhimurium, 389 



11C, 384, 403 



survival of mice related to dose of, 390 

 Sarcoma, subcutaneous, 250 

 Scores 



and information per individual, table of, 

 AajBb x aajbb mating, 67 

 ABjab x ABjab mating, 68 

 Ab/aB x Ab/aB mating, 68 

 ABjab x ABjab mating, with A semi- 

 dominant, 69 

 ABjab x ABjab mating, with A and B 



semidominant, 69 

 methods, 70 



maximum likelihood, 63, 65, 70, 73, 74 

 Second-set response, 429 

 Segregation (s) 



disturbed, 61 



in individual loci, chi-square, 59 



pattern, differences in for hemoglobin, 321 



testing and detecting linkage, 58 

 Seizures 



audiogenic, 230, 285, 287 



in mouse, 232 



in rabbits, 231 



phenylalanine hydroxylase level, 232 



relationship between pigment and audio- 

 genic, 232 

 Selection 



coefficient, 187 



differential, 211, 213 



final level reached, 2 1 1 



for resistance to infection, 401 

 relation to survival, 391 



in neoplastic cells in vivo, 423 



intrademic, 185, 192 



mass, 192 



natural, 185 



of auxotrophic mutant, 451 



of drug-Tesistant bacteria, 48 



of species and systems of mating for radiation 

 genetic studies, 149 



pressure on transplanted cells, 422 



random chance in, 54 



response to, 211 



time to reach limit, 21 1 



two-way, 212 

 Selection-variation mechanism, 461 

 Selective peaks, 191 

 Selective value 



in genie interaction, 181 



mean of homallelic populations, 183 



of alleles, 182 

 Semilethals, 55 



Sequence, of histocompatibility loci, 466 

 Sera, methods for procurement of, 351 



