| Type | MGI:General | Description | wild-type superovulated females that are mated with mutant homozygous males show spermatozoa in the oviduct and ampulla but no fertilized eggs are observed, indicating a defect in sperm-egg interactions mutant spermatozoa accumulate in the perivitelline space of unfertilized wild-type oocytes indicating that spermatozoa are unable to fuse with the egg |
