dominance of traits

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Related to dominant inheritance: codominant inheritance

dom·i·nance of traits

an expression of the apparent physiologic relationship existing between two or more genes that may occupy the same chromosomal locus (alleles). At a specific locus there are three possible combinations of two allelic genes, A and a: two homozygous (AA and aa) and one heterozygous (Aa). If a heterozygous individual presents only the hereditary characteristic determined by gene A, but not a, A is said to be dominant and a recessive; in this case, AA and Aa, although genotypically distinct, should be phenotypically indistinguishable. If AA, Aa, and aa are distinguishable, each from the others, A and a are codominant.

dom·i·nance of traits

(dom'i-năns trāts)
An expression of the apparent physiologic relationship existing between two or more genes that may occupy the same chromosomal locus (alleles). At a specific locus there are three possible combinations of two allelic genes, A and a: two homozygous (AA and aa) and one heterozygous (Aa). If a heterozygous individual presents only the hereditary characteristic determined by gene A, but not a, A is said to be dominant and a recessive; in this case, AA and Aa, although genotypically distinct, should be phenotypically indistinguishable. If AA, Aa, and aa are distinguishable, each from the others, A and a are codominant.
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References in periodicals archive ?
Hereditary retinoblastoma shows autosomal dominant inheritance with 90% clinical penetrance.
Gorlin-Goltz syndrome
Johnson et al supported the dominant inheritance theory of both TP and TM.
PREVALENCE OF TORUS MANDIBULARIS AND TORUS PALATINUS AMONG CHILDREN AND ADULTS IN JORDAN
In familial cases, autosomal dominant inheritance is more common than X-linked inheritance.
Isolated non-compaction of the left ventricle
Also, Native Americans have a hereditary form of PMLE with autosomal dominant inheritance that can involve the face and is most common in patients with Fitzpatrick skin types
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There is usually a VHL tumor suppressor gene germline mutation with an autosomal dominant inheritance pattern.
Endolymphatic sac tumor
Marfan syndrome is a connective tissue disorder of autosomal dominant inheritance, with an incidence of 1:5000.
Pelvic dural ectasia leading to bilateral ureteric obstruction in the pediatric patient
A new case of Klippel-Trenaunay-Weber (KTW) syndrome: evidence of autosomal dominant inheritance.
Atypical presentation (or a variant) of Klippel-Trenaunay-Weber syndrome: a case report and literature review
Familial idiopathic brain calcification with autosomal dominant inheritance.
A case of Fahr's disease presenting with obsessive-compulsive disorder/Obsesif-kompulsif bozukluk ile giden Fahr hastaligi olgusu
Cleidocranial dysplasia (CCD) is a rare disorder with autosomal dominant inheritance, though 40% cases occur spontaneously with no apparent genetic cause.
Cleidocranial dysplasia: a rare cause of disproportionate severe short stature
In addition, hereditary methemoglobinemias due to NADH dependent cytochrome reductase (NADH dependent methemoglobine reductase = NADH dependent diaphorase) deficiency, which was assayed only by us so far in Turkey with probable dominant inheritance and Hemoglobin M cases were reported on several journals (5-11).
About methemoglobinemia / methemoglobinemia Hakkinda
Autosomal recessive inheritance of asthma was more common than dominant inheritance in our study population.
Inheritance patterns, consanguinity & risk for asthma
Early-onset type 2 diabetes is characterized by insulin resistance, obesity, the onset of diabetes before age 40 years, and the occasional presence of autosomal dominant inheritance (1, 2).
Herencia multigeneracional y caracteristicas clinicas de la diabetes tipo 2 de inicio temprano en tres arboles genealogicos grandes de Jamaica

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