We know from the science of population genetics how many breeding pairs of a species are necessary in order to supply enough genetic diversity for a population to survive. (religion.blogs.cnn.com)
The objective was to assess whether the breed retains enough genetic diversity to correct the genotypic and phenotypic abnormalities associated with poor health, to allow for the elimination of deleterious recessive mutations, or to make further phenotypic changes in body structure or coat. (cgejournal.biomedcentral.com)
Using high school level science, explain to us how 4 breeding pair of humans, with 5 members sharing much of the same genetic material, can provide enough genetic diversity for the population to continue. (religion.blogs.cnn.com)