Experiments With Drosophila Ampelophila Concerning Evolution
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If it is strong it may be potent enough to produce abnormalities in spite of this dilu- firm fVmco-ivino-inrwnnlpfpdoTni- Table 23 -— Results of seven crosses between tion, tnus giving incomplete aomi abnormal and normal strains in a late nance. Even when it is pure (AA), its fluctuation may give individuals in which the zygotic strength is not great enough to produce abnormalities, thus ac- counting for the normals in the abnormal strain. Whether one could so increase the strength of the abnor...mality-producing factor that when the selected flies are mated with flies lacking the factor all the offspring will be abnormal is not certain, but table 23 indicates such a possibility. ' ' If, however, we have, in carefully conducted experiments, many flies somatically normal but germinally abnormal, and if by selection it is easy to so weaken the abnormality-producing factor that from a strain 100 per cent abnormal we get and keep one 100 per cent somatically normal (all presumably germinally abnormal, since they came from a 100 per cent abnormal strain), must we not admit the possibility that all somatically normal flies have the germinal possibilities of abnormality?
What to read after Experiments With Drosophila Ampelophila Concerning Evolution?
You can find similar books in the "Read Also" column, or choose other free books by Frank Eugene Lutz to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
If it is strong it may be potent enough to produce abnormalities in spite of this dilu- firm fVmco-ivino-inrwnnlpfpdoTni- Table 23 -— Results of seven crosses between tion, tnus giving incomplete aomi abnormal and normal strains in a late nance. Even when it is pure (AA), its fluctuation may give individuals in which the zygotic strength is not great enough to produce abnormalities, thus ac- counting for the normals in the abnormal strain. Whether one could so increase the strength of the abnor...mality-producing factor that when the selected flies are mated with flies lacking the factor all the offspring will be abnormal is not certain, but table 23 indicates such a possibility. ' ' If, however, we have, in carefully conducted experiments, many flies somatically normal but germinally abnormal, and if by selection it is easy to so weaken the abnormality-producing factor that from a strain 100 per cent abnormal we get and keep one 100 per cent somatically normal (all presumably germinally abnormal, since they came from a 100 per cent abnormal strain), must we not admit the possibility that all somatically normal flies have the germinal possibilities of abnormality?
What to read after Experiments With Drosophila Ampelophila Concerning Evolution?
You can find similar books in the "Read Also" column, or choose other free books by Frank Eugene Lutz to read onlineMoreLess
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