The Pattern of Evolution
In a recent survey, when 2,000 adult Americans were asked to complete the statement Life
on Earth has . . .
42% picked . . . existed in its present form since the beginning of time.
48% picked . . . evolved over time.
Mutation and Genetic Variation
The genetic variation that natural selection and other evolutionary forces act on originates in
Mutation is the only process that creates completely new alleles and new genes; hence,
mutation is the ul
Many traits are determined by the combined influence of alleles at many loci. When
studying such traits, we often do not know the identities of the particular loci involved.
Quantitative genetics is the branch of evoluti
Darwinian Natural Selection
Darwin, based on his own observations and the observations of other early evolutionists,
asserted that species were not independently created, but rather had descended with
modification from other species.
Mendelian Genetic in Populations I Part 1
Population genetics integrates Darwins Theory of Evolution by Natural Selection with
Mendelian genetics. The crucial insight of population genetics is that changes in the relative
abundance of traits
Mendelian Genetic in Populations I Part 2
Patterns of Selection: Testing Predictions of Population Genetic Theory
In an effort to improve the genetic quality of future generations, 30 states in the US had
enacted compulsory sterilizati