| Type | MGI:General | Description | when homozygotes were bred together, only 2 out of a total of 124 pups (instead of the expected 13) were double homozygotes; one died before weaning and not used for analysis while the second one was placed on proline-supplemented DietGel 76 A at weaning, but remained smaller and was euthanized at 12 weeks of age |
