And letâs face it: the Hollywood version of Revenge of the Mummy would be no great loss. Originally built in 2004, itâs a shadow of its Universal Studios Florida counterpart.
This variety can be measured on several different levels. Genetic-variation between individuals of the same species. This includes genetic variation between individuals in a single population, as well as variations between different populations of the same species. Genetic differences can now be measured using increasingly sophisticated techniques. These differences are the raw material of evolution.
The traits that are analyzed can be outward phenotypes that can be easily scored. More recently, biochemical and RFLP data has been used to assess population variability. This image illustrates a key concern of population genetics --- the measurement of variability. This is a collection of snail shells. As you can see, many different patterns and colors are possible for the shells. Clearly many different alleles exist that control color and shape.