| OMIM | Online Mendelian Inheritance in Man [database] |
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| PHAVER | pterygia-heart defects-autosomal recessive inheritance-vertebral defects-ear anomalies-radial defect... |
| XL | excess lactate; X-linked [inheritance]; xylose-lysine [agar base] |
| XR | xeroradiography; X-linked recessive [inheritance]; x-ray |
| OMIM | On-Line Mendelian Inheritance in Man |
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| Mendelian inheritance | <genetics> Inheritance of characters according to the classical laws formulated by Gregor Mendel, which give the classic ratios of segregation in the F2 generation. In sexually reproducing organisms, any process of heredity explicable in terms of chromosomal segregation, independent assortment and homologous exchange. (18 Nov 1997) |
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| Mendelian Inheritance in Man | A standard, comprehensive, perpetually updated reference source for traits in humans that have been shown to be mendelian or that are thought on reasonable grounds to be so. Each entry has a six-digit catalog number. Those securely established (by molecular biology or by extensive clinical studies) are marked with an asterisk. (05 Mar 2000) |
| mendelian | Referring to the Austrian monk Gregor Mendel (1822-84) who formulated laws forming the foundation of classical genetics. (12 Dec 1998) |
| mendelian character | An inherited character under the control of a single locus (although perhaps modified by genes at other loci). (05 Mar 2000) |
| mendelian genetics | The study of the pattern of segregation of phenotypes under the control of genetic loci taken one at a time. (05 Mar 2000) |
| mendelian ratio | The ratio of progeny with a particular phenotypes or genotypes expected in accordance with Mendel's law among the offspring of matings specified as to genotype or phenotype. (05 Mar 2000) |
| mendelian trait | A categorical trait that segregates in accordance with a single-locus genetic system. (05 Mar 2000) |
| alternative inheritance | Galton's term for an assumed form in which all the characters are derived from one parent. (05 Mar 2000) |
| blending inheritance | Galton's term for inheritance in which no component is conspicuous or obtrusive. (05 Mar 2000) |
| galtonian inheritance | Inheritance in which a measurable phenotype is generated by many loci, the contributions of which are statistically independent, additive, and of about equal value. (The latter are in accordance with the classical central limit therein and justify the use of the multivariate normal distribution in galtonian genetics). Synonym: polygenic inheritance. (05 Mar 2000) |
| recessive inheritance | dominance of traits |
| maternal inheritance | Inheritance through the maternal cell line, for example through the oocyte and eggs. Mitochondrial genes are maternally inherited and various other nonMendelian forms of inheritance may also appear as maternal inheritance. (18 Nov 1997) |
| mitochondrial inheritance | The inheritance of a trait encoded in the mitochondrial genome. Because of the oddities of mitochondria, mitochondrial inheritance does not obey the classic rules of genetics. Persons with a mitochondrial disease may be male or female but they are always related in the maternal line and no male with the disease can transmit it to his children. (12 Dec 1998) |
| codominant inheritance | Inheritance in which two alleles are individually expressed in the presence of each other; there may be other alleles available at the locus that may or may not exhibit codominance. (05 Mar 2000) |
| collateral inheritance | The appearance of characters in collateral members of a family group, as when an uncle and a niece show the same character inherited from a common ancestor; in recessive characters it may appear irregularly, in contrast to dominant characters transmitted directly from one generation to the next. (05 Mar 2000) |
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