The selective breeding of domesticated plants and animals by man.
What’s the ancestor of the domesticated dog?
Geographical distribution of species.
2. Fossil Record:
Fossils and the order in which they appear in layers of sedimentary rock (strongest evidence).
Classification of life forms.
4. Homologous structures:
Structures that are similar because of common ancestry (comparative anatomy)
Evidence of Evolution
5. Comparative embryology:
Study of structures that appear during embryonic development.
6. Molecular biology:
DNA and proteins (amino acids)
The science of genetic change in population.
Remember: Hardy-Weinberg equation.
A localized group of individuals belonging to the same species.
A group of populations whose individuals have the potential to interbreed and produce viable offspring.
The total collection of genes in a population at any one time.
The concept that the shuffling of genes that occur during sexual reproduction, by itself, cannot change the overall genetic makeup of a population.
This principle will be maintained in nature only if all five of the following conditions are met:
1. Very large population
2. Isolation from other populations
3. No net mutations
4. Random mating
5. No natural selection
If these conditions are met, the population is at equilibrium.