True Breeding: Definition, Mechanism, and Examples

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True Breeding Definition

A kind of breeding in which parents with a specific trait generate only offspring of that phenotype. True breeding is a form of breeding in which the parents generate children with the same phenotype as the parents. This indicates that both parents are homozygous for all of their children’s traits.

What is True Breeding?

Aberdeen Angus cattle are a good illustration of genuine breeding. The cattle have stayed black for several generations, indicating that a characteristic passed down through the ancestors has remained pure. Another example is when two canines of the same breed mate. As a consequence, the quality of the children would be more predictable.

True Breeding Example

When plants self-pollinate, they produce only offspring of the same variety, which is known as pure breeding. A plant with blue blooms, for example, will only generate seeds that will grow into blue-flowering plants. When genuine breeding is used, the characteristics are handed down through the generations. Parents must be homozygous for a trait in order for this to happen, which implies they must be both dominant and recessive.

True breeding, on the other hand, implies a small gene pool. As a result, there is a high likelihood of a specific characteristic (e.g., genetic diseases) being inherited, which might be harmful to the offspring’s health.

True Breeding Citations


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