Dominance Relationship

A dominance relationship is a pattern of inheritance in which the phenotype of a heterozygote depends on how its alleles interact, often because one allele produces a functional gene product while the other produces little or none. In complete dominance, the dominant allele masks the recessive allele in a heterozygous individual, whereas incomplete dominance creates an intermediate phenotype and codominance allows both alleles to be expressed. Understanding dominance relationships helps students interpret Punnett squares and pedigrees and enables researchers to predict inherited traits, investigate genetic disorders, and support plant and animal breeding.

Dominance Relationship - Related Videos

Education

JoVE Business - Microeconomics

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.

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...

Research

JoVE Journal - Behavior

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.

Relationship Formation

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2020

What do you think is the single most influential factor in determining with whom you become friends and whom you form romantic relationships? You might be surprised to learn that the answer is simple: the people with whom you have the most contact. This most important factor is proximity. You are more likely to be friends with people you have regular contact with. For example, there are decades of research that shows that you are more likely to become friends with people who live in your dorm,...

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...

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