Fig. 2From: Measurements of hybrid fertility and a test of mate preference for two house mouse races with massive chromosomal divergenceExpected inheritance of a meiotic chain of fifteen chromosomes considering parental, F1 and backcross individuals. F1 female mice are expected to produce gametes containing either chain chromosomes from their CHBU parent (white), or chain chromosomes from their CHHN parent (black). The fusion of these oocytes with sperm from CHHN males (black) should lead to backcross offspring (BC) with the hybrid karyotype (2n = 23) or the CHHN karyotype (2n = 24). Chromosomes not involved in the chain need not segregate according to race of originBack to article page