(1) A situation in which one gene of an allelic pair prevents the phenotypic expression of the other member of the allelic pair. (2) A type of social behavior in which an animal exerts influence over one or more other animals.
Inter-allelic/intragenic interaction with complete suppression of one allele by another.
The ability of a gene to prevail in the offspring over its opposite or recessive trait.
Referring to alleles that fully manifest their phenotype when present in the heterozygous state.
The property possessed by some alleles of determining the phenotype for any particular gene by masking the effects of the other allele (when heterozygous). Thus, homozygosity or heterozygosity for the dominant allele result in the same genotype in complete dominance (if red is dominant over white, the petals of a flower heterozygous for red and white would be red). Incomplete dominance appears as a blend of the phenotypes corresponding to the two alleles (like pink petals as opposed to red or white). In co-dominance, both alleles equally contribute to the phenotype (red and white petals occur together).
The innate tendency to spend more time in one metamotivational state than its opposite in a given pair of states. Thus one would be sympathy dominant if one tended to spend more time in the sympathy than the mastery state. Every degree of dominance is possible between the members of a pair of states, including an exact balance between them. Dominance may be due especially to the way in which satiation can build up faster in one direction that the other in a pair of state It should be noted that even if a person is dominant in one state, that person will still be expected to spend time in the opposite state. In this respect the dominance concept is fundamentally different from that of a trait. It is also different in that dominance itself, unlike a trait, will normally be expected to change over time.
Intra-allelic interaction such that one allele manifests itself more or less, when heterozygous, than its alternative allele.
The full phenotypic expression of a gene in both heterozygotes and homozygotes.
The property of one of a pair of alleles that suppresses the expression of the other member of the pair in heterozygotes.
not a permanent trait, always within some context, not a genetically inherited trait, can be for females as well as males
The expression of one member of an allelic pair at the expense of the other in the phenotypes of heterozygotes. gene. One of the chromosomal units that transmit specific hereditary traits; a segment of the self-reproducing molecule, deoxyribonucleic acid.
Refers to the expression of genetically controlled characters ( phenotypes) and their corresponding alleles when they are in the heterozygous condition.
Dominant genes affect the phenotype when present in either homozygous or heterozygous condition. A dominant gene need only be obtained from one parent to achieve expression.
An interaction between genes at a single locus such that, in heterozygotes, one allele has more effect than the other. The allele with the greater effect is dominant over its recessive counterpart.
In genetics, a dominant gene is one that brings about the same phenotypic (q.v.) effects whether it is present in a single dose along with a specified allele (q.v.), or in a double dose. The allele that is ineffective in the presence of the dominant gene is said to be recessive.
Takes place when one member of an allele pair manifests itself to the exclusion of the other.
Used to describe a pattern of inheritance in which the dominant allele will be always be expressed, even in the presence of a recessive allele.