Dominant
Dominant - Related Videos
01:29
Dominant and Dominated Strategies
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2025
In strategic decision-making, a dominant strategy is one that always provides the best outcome for a player, no matter what the other players decide. This ensures that the player's payoff is maximized regardless of the choices made by others. On the other hand, a dominated strategy consistently leads to a worse outcome than another available strategy, regardless of the opponent's decision. For instance, imagine two firms competing in a market by setting production levels—either high or low.
01:43
Incomplete Dominance
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2021
Gregor Mendel's work (1822 - 1884) was primarily focused on pea plants. Through his initial experiments, he determined that every gene in a diploid cell has two variants called alleles inherited from each parent. He suggested that amongst these two alleles, one allele is dominant in character and the other recessive. The combination of alleles determines the phenotype of a gene in an organism. According to Mendel, organisms with both copies or a single copy of the dominant allele display a...
03:34
Assessing Social Dominance in Mouse Models Using the Tube Test
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Cited by 1 •
2025
This protocol describes a behavioral assay to evaluate social dominance in rodents using the tube test. Social dominance remains stable over time, and several models of developmental and neurological disorders exhibit robust social dominance abnormalities. Therefore, the tube test serves as a convenient outcome measure for mechanistic studies or preclinical therapeutic screening.
01:30
Equilibrium in Dominant Strategies
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2025
In game theory, equilibrium in dominant strategies arises when each player selects their optimal strategy independently of others' choices. This simplifies analysis since each player's best decision is predictable without considering opponents' actions. Understanding Dominant Strategy Equilibrium A dominant strategy consistently offers the best outcome for a player, regardless of the choices of other players. When all players adopt their dominant strategies, the game reaches a stable...
08:35
Inducible and Reversible Dominant-negative (DN) Protein Inhibition
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2019
Here we present a protocol to develop a dominant-negative inducible system, in which any protein can be conditionally inactivated by reversibly overexpressing a dominant-negative mutant version of it.
FAQs
Masking can occur when the dominant allele produces a functional product or regulatory effect that determines the observable phenotype despite the presence of a different allele at the same locus. The recessive allele remains part of the genotype, so it can still be transmitted to offspring. This distinction helps explain why genotype and phenotype may differ.
Dominance describes the phenotype produced when different alleles occur together, not the frequency or biological value of an allele. A dominant allele may be uncommon, and dominance alone does not show that it is stronger or favored by evolution. Separating these ideas prevents incorrect conclusions about population variation and inherited traits.
Dominant and recessive effects are evaluated for alleles at the same genetic locus, meaning the corresponding position associated with a trait or variant. The relationship becomes informative when those alleles are paired in an organism, especially in a heterozygous genotype. This locus-based comparison supports accurate interpretation of genotype–phenotype relationships rather than broad claims about unrelated genes.
A Punnett square organizes possible allele combinations inherited from two parents and helps identify which offspring genotypes may produce a dominant phenotype. Its interpretation requires distinguishing genotype from phenotype, because a phenotype associated with dominance can arise from an allele pair containing different alleles. The resulting combinations support analysis of variant transmission across generations.
Pedigrees provide a family-based framework for examining how a trait or genetic variant appears across generations. By comparing observed phenotypes with possible genotypes, researchers can assess whether a dominant allele may account for inheritance patterns in relatives. This approach is useful for studying inherited traits and genetic disorders while keeping phenotype and genotype conceptually distinct.
Dominance is useful whenever researchers interpret inherited traits, genetic disorders, selective-breeding outcomes, or the transmission of variants across generations. Combining dominance principles with genotype–phenotype analysis helps explain why particular observable traits appear in offspring and how hidden recessive variants may persist. The same reasoning supports structured analysis using Punnett squares and pedigrees.