... by separating one from the other. A wild race seemed best suited for a test of this hypothesis, since it would be free from suspicion on the possible ground of harboring either the hooded pattern or its supposed modifier, which had converted the hooded... Studies of inheritance in guinea-pigs and rats - 173 ページWilliam Ernest Castle 著 - 1916 - 192 ページ全文表示 - この書籍について
| 1917 - 806 ページ
...might be due to some supplementary modifying factor, not to a change in the hooded factor itself.4 If so, a cross with a race lacking the hooded factor...produce only mutants and selfs, without hooded young in Ff Crosses have now been made on a sufficient scale to show beyond question the correctness of the... | |
| 1917 - 792 ページ
...its supposed modifier, which had converted the hooded pattern into the mutant. It was to be erpected, if the hypothesis were correct, that the mutant character...modifier; that then a cross with wild should produce in F, hooded young (lacking the modifier) as well as mutants and selfs. But if the mutant race had arisen... | |
| |