+------------+---------------------+-------------------+----------------+ | Reference. | Wild-type [female]. | Wild-type [male]. | Cherry [male]. | +------------+---------------------+-------------------+----------------+ | 15 I | 266 | 120 | 100 | +------------+---------------------+-------------------+----------------+ +------------+-------------------------------------+ | | First generation. | | Reference. +--------------------+----------------+ | | White-cherry | | | | compound [female]. | Cherry [male]. | +------------+--------------------+----------------+ | 9 M | 321 | 302 | +------------+--------------------+----------------+ Eosin-cherry compound was also made. An eosin female was mated to a cherry male. The eosin-cherry daughters were darker than their eosin brothers. Inbred they gave the results shown in table 31. TABLE 31.--_P_1 eosin [female] x cherry [male]._ +------------------------------------------+ | First generation. | +------------+-------------------+---------+ | | Eosin-cherry | Eosin | | Reference. | compound | [male] | | | [female][female]. | [male]. ~ | | | ~ +------------+-------------------+---------+ | 43C | 71 | 58 | +------------+-------------------+---------+ +----------------------------------------------------+ | Second generation. | +------------+-------------------+---------+---------+ | | Eosin and | | | | Reference. | eosin-cherry | Cherry | Eosin | ~ | compound | [male]. | [male]. | ~ | [female][female]. | | | +------------+-------------------+---------+---------+ | 1I | 154 | 99 | 62 | | 2I | 174 | 74 | 77 | | +-------------------+---------+---------+ | | 328 | 173 | 139 | +------------+-------------------+---------+---------+ Although in the F_2 results there are two genotypic classes of females, namely, pure eosin and eosin-cherry compound, the eye-colors are so nearly the same that they can not be separated. The two classes of males can be readily distinguished; of these, one class, cherry, has the same color as the females, while the other class, eosin, is much lighter. Such an F_2 group will perpetuate itself, giving one type of female (of three possible genotypic compositions, but somatically practically homogeneous) and two types of males, only one of which is like the females. FUSED.