NatureSir Norman Lockyer Macmillan Journals Limited, 1928 - 700 strani |
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Stran 200
... chromosome or chromosomes have been incapacitated , a viable diploid results , in which the chromosomes in question are of homozygous melano- gaster type and the others are heterozygous as in the species hybrid . The kind of recessive ...
... chromosome or chromosomes have been incapacitated , a viable diploid results , in which the chromosomes in question are of homozygous melano- gaster type and the others are heterozygous as in the species hybrid . The kind of recessive ...
Stran 269
... chromosome changes before the Eighth American Scientific Congress . Evolution of plant types is dependent upon changes in their chromosomes . In addition to changes in individual genes , gross changes in chromosome structure may be ...
... chromosome changes before the Eighth American Scientific Congress . Evolution of plant types is dependent upon changes in their chromosomes . In addition to changes in individual genes , gross changes in chromosome structure may be ...
Stran 839
... chromosomes . These chromosomes I supposed to be inert . I now find from meiosis in the pollen mother cell that , amongst a wild 1931 collection of seeds given me by Mr. C. E. Hubbard of Kew , 40 out of 100 had these extra chromosomes ...
... chromosomes . These chromosomes I supposed to be inert . I now find from meiosis in the pollen mother cell that , amongst a wild 1931 collection of seeds given me by Mr. C. E. Hubbard of Kew , 40 out of 100 had these extra chromosomes ...
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Fleming Prof A Antiseptics in Wartime Surgery 680 Accidents 694 | 434 |
Fleure Prof H J The Celtic West 649 Solvent 720 | 682 |
Fordham S Electron Diffraction Intensities 807 Gibson Dr A The Canadian Entomological Service 90 | 780 |
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acid actinium activity Agriculture American animals Anuak appears biological birds brachiating Britain British carbon carbonic anhydrase cells cellulose cent chapter Chem chemical chemistry chromatophores chromosomes cocarboxylase College colour cosmic rays culture Department diploid discussed disease Easter Island economic effect electric electron engineering example experiments factor field fungus given Government hydrogen important increase India industry Institute interest investigations Island J. J. Thomson laboratory larvæ London material mathematical measure ment method Ministry Museum NATURE normal observed obtained occur organization paper period physical plankton plant plates Pleistocene polyploidy possible present problems production Prof protein reaction recent record relation Review Royal shown social Society solution South South Africa species structure suggested supply surface temperature tetraploid theory tion United University vitamin