| cerebral dominance | The fact that one hemisphere is dominant over the other and will exercise greater influence over certain functions; the left cerebral hemisphere is usually dominant in the control of speech, language and analytical processing, and mathematics, while the right hemisphere (usually nondominant) processes spatial concepts and language as related to certain types of visual images; handedness (right-handed people have left cerebral dominance) is considered a general example of cerebral dominance. (05 Mar 2000) |
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| cis dominance | <molecular biology> When a gene or promoter affects only gene activity in the DNA duplex molecule in which it is placed the effect is referred to as cis, as opposed to trans effects when a gene or promoter on one DNA molecule can affect genes on another DNA molecule. Cis dominance is seen only when the appropriate pair or set of genes are all cis to each other. (18 Nov 1997) |
| coronary artery dominance | <radiology> Dominance = source of posterior descending artery (patent ductus arteriosus), 70% right (right coronary artery), 20% balanced, 10% left (left CIRCUMFLEX artery) (12 Dec 1998) |
| social dominance | Superiority of relationship and rank of an individual in relation to his associates. (12 Dec 1998) |
| dominance | <genetics> The full phenotypic expression of a gene in both heterozygotes and homozygotes. Origin: L. Dominari = to govern (18 Nov 1997) |
| dominance, cerebral | Dominance of one cerebral hemisphere over the other in cerebral functions. (12 Dec 1998) |
| dominance hierarchy | A social situation in which one organism dominates all below it, the next all below it, and so on down to the organism dominated by all; e.g., the pecking order in apes, seals, barnyard hens, and other species. (05 Mar 2000) |
| dominance measure | The means or method by which dominance is established, including areal coverage and basal area, the total dominance measure is the sum total of the dominance measure values for all species comprising a given stratum. (09 Oct 1997) |
| dominance-subordination | Relationship between individuals when one individual threatens or becomes aggressive and the other individual remains passive or attempts to escape. (12 Dec 1998) |
| dominance threshold number | The number at which 50 percent of the total dominance measure for a given stratum is represented by one or more plant species when ranked in descending order of abundance (i.e., from most to least abundant), when this number is immediately exceeded, the dominant species for the stratum are realised. (09 Oct 1997) |
| incomplete dominance | <genetics> Two alleles of a gene which result in distinctly different phenotypes, but when they are both inherited together in an individual (one from the mother and one from the father - called heterozygosity), the individual ends up with a blend of the two phenotypes. For example: if one allele is for red hair and the other allele is for blue hair, then the individual will have purple hair. (This is in contrast to codominance, where the individual would inherit patches of blue and patches of red hair). (13 Nov 1997) |
| false dominance | Simulation by a recessive trait of the pedigree of dominant inheritance (i.e., recurrence in several generations) by repeated, and often occult, consanguineous matings. Synonym: false dominance. (05 Mar 2000) |