| HP:0000006 | Autosomal dominant 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 heterozygotes. In the context of medical genetics, an autosomal dominant disorder is caused when a single copy of the mutant allele is present. Males and females are affected equally, and can both transmit the disorder with a risk of 50% for each child of inheriting the mutant allele." [HPO:curators] |
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| HP:0000194 | Open mouth | |
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| HP:0000218 | High palate | "Height of the palate more than 2 SD above the mean (objective) or palatal height at the level of the first permanent molar more than twice the height of the teeth (subjective)." [pmid:19125428] |
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| HP:0000486 | Strabismus | "Strabismus (also known as squint) is a condition in which the eyes are not properly aligned with each other." [HPO:curators] |
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| HP:0000506 | Telecanthus | "An abnormally increased distance between the medial canthi (angle between eyelids) of the eyelids." [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:0001249 | Mental retardation | |
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| HP:0001250 | Seizures | "Seizures are an intermittent `abnormality of the central nervous system` (FMA:HP:0002011) due to a sudden, excessive, disorderly discharge of cerebral neurons and characterized clinically by some combination of disturbance of sensation, loss of consciousness, impairment of psychic function, or convulsive movements." [HPO:probinson] |
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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:0001319 | Neonatal hypotonia | "Muscular hypotonia (abnormally low muscle tone) manifesting in the neonatal period." [HPO:curators] |
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| HP:0001336 | Myoclonus | "Very brief, involuntary random muscular contractions occurring at rest, in response to sensory stimuli, or accompanying voluntary movements." [HPO:curators] |
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| HP:0001344 | Absent speech development | |
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| HP:0002058 | Myopathic facies | "A facial appearance characteristic of myopathic conditions. The face appears expressionless with sunken cheeks, bilateral ptosis, and inability to elevate the corners of the mouth, due to muscle weakness." [HPO:curators] |
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| HP:0002093 | Respiratory insufficiency | |
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| HP:0002136 | Broad-based gait | "An abnormal gait pattern in which persons stand and walk with their feet spaced widely apart. This is often a component of cerebellar ataxia." [HPO:curators] |
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| HP:0003429 | Hypomyelination | |
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| HP:0003828 | Variable expressivity | |
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| HP:0011220 | Prominent forehead | "Forward prominence of the entire forehead, due to protrusion of the frontal bone." [pmid:19125436] |
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| HP:0011968 | Feeding difficulties | "Impaired ability to eat related to problems gathering food and getting ready to suck, chew, or swallow it." [ISCA:eriggs] |
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| HP:0012448 | Delayed myelination | "`Delayed` (PATO:0000502) `myelination` (GO:0042552)." [ORCID:0000-0001-5208-3432] |
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