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Dominance Hierarchy: A social structure among a group of animals in which one is dominant and the others have subordinate nonbreeding positions.

Overdominance: Selection favoring heterozygotes

Synchronous Digital Hierarchy (SDH): A method used for multiplexing many circuits with a low bit rate onto fewer circuits with a higher bit rate, and vice-versa (de-multiplexing). Used primarily in the telecomms industry to car . . . View Full Definition

Incomplete Dominance: A type of inheritance in which the heterozygote has a phenotype intermediate to those of the homozygous parents.

Hierarchy Of Needs: A psychology theory ascribed to Abraham H. Maslow, in which he proposed that people will constantly seek to have their basic needs (sleep, food, water, shelter, etc.) fulfilled and that such . . . View Full Definition

Dominance: The property of one of a pair of alleles that suppresses the expression of the other member of the pair in heterozygotes.

Codominance: A type of inheritance in which heterozygotes fully express both alleles.

Complete Dominance: The type of inheritance in which both heterozygotes and dominant homozygotes have the same phenotype.