Pregnancy block in house mice (Mus domesticus) as a function of t-complex genotype: examination of the mate choice and male infanticide hypotheses.

Abstract excerpt

Pregnancy block, whereby recently mated female mice abort their pregnancies when exposed to novel (strange) males, was studied in house mice (Mus domesticus) differing in t-complex genotype; t-mutations are deleterious and +/t females avoid +/t males as mates. The results of Experiment 1, in which the genotype of the female, stud male, and strange male was systematically varied, showed that pregnancy block was...

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