| 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:0000348 | High forehead | "An abnormally increased height of the forehead." [HPO:curators] |
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| HP:0000494 | Downward slanting palpebral fissures | |
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| HP:0000508 | Ptosis | "Drooping of the eyelid." [HPO:curators] |
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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:0001265 | Hyporeflexia | |
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| HP:0001290 | Generalized hypotonia | "Generalized muscular hypotonia (abnormally low muscle tone)." [HPO:curators] |
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| HP:0002121 | Absence seizures | "Recurrent absence seizures are `generalized seizures` (HP:0002197) that are characterized by a sudden cessation of motor activity and by a blank facial expression with flickering of the eyelids. There is no convulsive muscular activity or loss of postural control." [HPO:probinson] |
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| HP:0002353 | EEG abnormalities | "Abnormality observed by electroencephalogram (EEG), which is used to record of the brain s spontaneous electrical activity from multiple electrodes placed on the scalp." [HPO:curators] |
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| HP:0002553 | Arched eyebrows | |
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| HP:0007074 | Thick corpus callosum | |
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| HP:0007359 | Partial seizures | "Recurrent partial `seizures` (HP:0001250). In a partial seizure, the electrical disturbance is limited to one part or side of the brain. That is, partial epilepsies are epileptic disorders in which clinical or laboratory findings disclose a localized origin of seizures." [HPO:curators] |
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| HP:0200134 | Epileptic encephalopathy | |
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