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: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: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:0000750 | Impaired language development | |
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HP:0001256 | Mental retardation, mild | "Mild mental retardation is defined as an intelligence quotient (IQ) in the range of 50-69." [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:0001290 | Generalized hypotonia | "Generalized muscular hypotonia (abnormally low muscle tone)." [HPO:curators] |
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HP:0002355 | Difficulty walking | |
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HP:0003202 | Amyotrophy | "The presence of muscular atrophy (which is also known as amyotrophy)." [HPO:curators] |
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HP:0003355 | Abnormal urinary amino-acid findings | |
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HP:0003812 | Phenotypic variability | |
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HP:0007018 | Attention deficit hyperactivity disorder | "Attention deficit hyperactivity disorder (ADHD) manifests at age 2-3 years or by first grade at the latest. The main symptoms are distractibility, impulsivity, hyperactivity, and often trouble organizing tasks and projects, difficulty going to sleep, and social problems from being aggressive, loud, or impatient." [HPO:curators] |
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