ScienceJohn Michels (Journalist) 1944 |
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Page 300
... species , besides possibly four genera doubtfully belonging to this family each with a single species . Four genera that have been ascribed to the group are definitely excluded as are a number of species from the accepted genera ...
... species , besides possibly four genera doubtfully belonging to this family each with a single species . Four genera that have been ascribed to the group are definitely excluded as are a number of species from the accepted genera ...
Page 332
... species of this genus , hybrids are necessary in which chromosomes may be matched up and compared . Unfortunately , hybrids Unfortunately , hybrids between certain species have not heretofore been pos- sible . Some of the blocks to ...
... species of this genus , hybrids are necessary in which chromosomes may be matched up and compared . Unfortunately , hybrids Unfortunately , hybrids between certain species have not heretofore been pos- sible . Some of the blocks to ...
Page 333
... species among which is D. stramonium . In this latter species there have been developed a large series of chromo- somal tester races ( Prime types ) with which the chromosomes in D. ceratocaula may be determined . Perhaps our most ...
... species among which is D. stramonium . In this latter species there have been developed a large series of chromo- somal tester races ( Prime types ) with which the chromosomes in D. ceratocaula may be determined . Perhaps our most ...
Contents
VOL | 1 |
A Longevity of the Eminent 345 | 20 |
Royal Observatory Greenwich 165 Standards Association American | 32 |
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Academy of Sciences acid activity Advancement of Science agricultural amebiasis American Association animals annual applied appointed areas Asso avidin awarded Biol biological biotin botany Cattell cells cent chairman Chem chemical chemistry chemists Chicago clavacin College Columbia University committee Company Council desthiobiotin director disease effect elected engineering enzyme estrogen experiments field filariasis Foundation Geological growth human industrial infection Institute investigations Jour Journal laboratory lectures lysozyme malaria material mathematics Medal meeting ment method mice Museum National nature nutrition organic chemistry organization paper patulin penicillin physical plants present president problems production professor protein psychology Public Health published rats recent RECENT DEATHS reported Rockefeller Foundation School of Medicine scientific scientists secretary Smithsonian Institution Building Society solution Soviet species Technology thiouracil tion tropical medicine United versity vice-president virus vitamin Washington William York York City zoology