Publisher's Synopsis
Excerpt from Defective Inheritance-Ratios in Bursa Hybrids
A defective ratio in the rosettes of one family is shown to be due to failure of dominance, and certain facts are presented, which indicate that this failure of dominance is attributable to a less relative potency of the gene A which determines the tenuis-character. This change in the relative potency of A may be due to a decline in'the efficiency of the gene itself, or to the operation of some other factor or condition which offers an increased resistance to the development of the team's-characters.
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