Genetic variation within a population is measured according to ... understand a gene pool as the collective set of alleles whose phenotype may or may not be observable. Tropical butterflies ...

Genetic variation is usually expressed ... or allele within a population. Relative phenotype frequency is the number of individuals in a population that have a specific observable trait or phenotype.

The cohort's general SOD1 phenotype was characterized ... need for further research into ALS genetics across African populations and the establishment of population-based ALS registries in African ...