Genetic Variation Is Important
Genetic diversity is rapidly lost in small populations because not all genes are passed from one generation to the next. This is called genetic drift. The loss of genetic diversity results in inbred populations which have poor health and are less able to evolve and adapt to new environments.
The potential for loss of genetic diversity in captive
populations of endangered species is high because these
captive populations are small by nature. Captive breeding
programs based on scientific management principles attempt
to maximize the retention of genetic diversity. In these
populations, we use pedigree analysis to decide which
animals should breed, with whom, and how often.
Which of the GLTs below is the most genetically valuable?