DOMINANT ALLELE definition
(1) (Of, or pertaining to) An allele or a gene that is expressed in an organism ’s phenotype, masking the effect of the recessive allele or gene when present. (2) (Of, or pertaining to) An organism that expresses the dominant gene (or allele). (genetics). (1) (Of, or pertaining to) An allele or a gene that is expressed in an organism ’s phenotype, masking the effect of the recessive allele or gene when present. (2) (Of, or pertaining to) An organism that expresses the dominant gene (or allele). An allele that expresses its phenotypic effect even when heterozygous with a recessive allele; thus if A is dominant over a, then AA and Aa have the same phenotype. (2) (Of, or pertaining to) An organism that expresses the dominant gene (or allele). (ecology) (Of, or pertaining to) An organism or group of organisms having the most considerable influence or control in its ecological community among other organism. Biology Glossary search by EverythingBio.com. An allele that expresses its phenotypic effect even when heterozygous with a recessive allele; thus if A is dominant over a, then AA and Aa have the same phenotype. (1) (Of, or pertaining to) An allele or a gene that is expressed in an organism ’s phenotype, masking the effect of the recessive allele or gene when present. Dominant allele: An allele that masks an alternative allele when both are present (in heterozygous form) in an organ ism (see recessive). Most common autosomal dominant diseases are due to mutation s in transcription factor genes (Jimenez-Sanchez, 2001). (1) A recessive allele or trait. (2) An organism whose recessive trait is discernible or expressed. Supplement. In genetics, a recessive gene or allele is one in which the effect is not tangible, or is masked by the effects of the dominant gene. Definition. (genetics). (1) (Of, or pertaining to) An allele or a gene that is expressed in an organism ’s phenotype, masking the effect of the recessive allele or gene when present. allele, allelomorph - (genetics) either of a pair (or series) of alternative forms of a gene that can occupy the same locus on a particular chromosome and that control the same character; some alleles are dominant over others.
An allele that masks an alternative allele when both are present in an organism.