What best describes hybrid breeding?

Hybrid breeding is best described as the process of combining different inbred strains to generate a new hybrid. This practice takes advantage of the genetic diversity that exists between inbred strains to produce offspring that may exhibit traits from both parent strains, which can be useful for research purposes.

The new hybrids often show increased vigor and variability, making them valuable for studies in genetics, disease resistance, and other biological research areas. The offspring may benefit from what is known as hybrid vigor or heterosis, which can lead to improved performance or adaptability.

While other options reference breeding practices, they do not encapsulate the specific concept of hybrid breeding as effectively. For instance, breeding animals of the same inbred strain refers to inbreeding rather than hybridization. Creating animals with only dominant gene expressions suggests a focus on phenotype without the genetic mixing characteristic of hybrids. Breeding without considering genetic traits overlooks the essential aspect of selective breeding, which is crucial in hybrid breeding to achieve desired traits from different strains.