| HP:0000007 | Autosomal recessive inheritance | "A mode of inheritance that is observed for traits related to a gene encoded on one of the autosomes (i.e., the human chromosomes 1-22) in which a trait manifests in homozygotes. In the context of medical genetics, autosomal recessive disorders manifest in homozygotes (with two copies of the mutant allele) or compound heterozygotes (whereby each copy of a gene has a distinct mutant allele)." [HPO:curators] |
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| HP:0000144 | Decreased fertility | |
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| HP:0000252 | Microcephaly | "Microcephaly is a neurodevelopmental disorder in which the circumference of the head is more than two standard deviations smaller than the age- and gender-dependent norm." [HPO:curators] |
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| HP:0000278 | Retrognathia | |
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| HP:0000286 | Epicanthus | "An epicanthal fold is a semilunar fold of skin that extends from the upper eyelid across the medial canthal area to the lower eyelid." [HPO:curators] |
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| HP:0000400 | Large ears | |
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| HP:0000463 | Nares, anteverted | "Anteriorly-facing nostrils viewed with the head in the Frankfurt horizontal and the eyes of the observer level with the eyes of the subject." [pmid:19152422] |
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| HP:0000482 | Microcornea | "A congenital abnormality of the `cornea` (FMA:58238) in which the cornea and the anterior segment of the eye are smaller than normal. The horizontal diameter of the cornea does not reach 10 mm even in adulthood." [HPO:probinson] |
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| HP:0000568 | Microphthalmos | "A developmental anomaly characterized by abnormal smallness of one or both eyes." [HPO:curators] |
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| HP:0000639 | Nystagmus | "Rhythmic, involuntary oscillations of one or both eyes related to abnormality in fixation, conjugate gaze, or vestibular mechanisms." [HPO:curators] |
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| HP:0000648 | Optic atrophy | |
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| HP:0000685 | Hypoplastic teeth | |
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| HP:0001097 | Keratoconjunctivitis sicca | "Dryness of the eye related to deficiency of the tear film components (aqueous, mucin, or lipid), lid surface abnormalities, or epithelial abnormalities. Keratoconjunctivitis sicca often results in a scratchy or sandy sensation (foreign body sensation) in the eyes, and may also be associated with itching, inability to produce tears, photosensitivity, redness, pain, and difficulty in moving the eyelids." [HPO:curators] |
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| HP:0001249 | Mental retardation | |
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| HP:0001263 | Developmental retardation | "A delay in the achievement of motor or mental milestones manifested prior to age 18 and generally associated with lifelong mental and/or physical impairments." [HPO:curators] |
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| HP:0001338 | Partial agenesis of the corpus callosum | "A partial failure of the development of the corpus callosum." [HPO:curators] |
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| HP:0001510 | Growth retardation | |
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| HP:0001598 | Koilonychia | |
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| HP:0001629 | Ventricular septal defect | "A hole between the two bottom chambers (ventricles) of the heart. The defect is centered around the most superior aspect of the ventricular septum." [HPO:curators] |
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| HP:0001792 | Nail hypoplasia | "Underdeveloped `fingernails` (FMA:54327) or `toenails` (FMA:54328)." [HPO:probinson] |
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| HP:0002120 | Cerebral cortical atrophy | |
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| HP:0002299 | Fine, brittle hair | |
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| HP:0003196 | Nasal hypoplasia | "Underdevelopment of the `nose` (FMA:46472)." [HPO:probinson] |
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| HP:0006829 | Severe muscular hypotonia | "A severe degree of muscular hypotonia characterized by markedly reduced muscle tone." [HPO:curators] |
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| HP:0008070 | Sparse hair | |
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| HP:0009886 | Trichorrhexis nodosa | "Trichorrhexis nodosa is the formation of nodes along the hair shaft through which breakage readily occurs. It is thus a focal defect in the hair fiber that is characterized by thickening or weak points (nodes) that cause the hair to break off easily. The result is defective, abnormally fragile hair." [HPO:curators] |
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| HP:0010719 | Abnormality of hair texture | "An abnormality of the texture of the `hair` (FMA:53667)." [HPO:probinson] |
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