Flashcards in Evolution Deck (18):
The actual processes that allow genetic diversity to occur. The actual change in genes.
Measuring the success of the changed genes. The environmental pressures that select the fittest organisms.
Darwin's ship that studied bio-geographical isolation
Diversity of life throughout the world.
Darwin's 5 key observations
1. Organisms within the same population have unique traits.
2. Traits are inheritable.
3. Organisms adapt.
4. Nature is cruel.
5. Differential reproduction occurs (number if offspring).
Biological processes that changes the gene sequence for a trait.
5 different types of changes in genes
What type of mutations usually cause evolution?
Missense, accumulation of many mutations
Can change phenotype and new genes
Emigration and immigration of new or different genes into a population and reproduce.
Combination of egg and sperm
Getting rid of alleles in a population, loss of individuals by chance
When a few organisms find a new place to live (recolonize), reduction in genes in population
When a few individuals start a new population and decreases the genetic diversity
Both organisms benefit in the relationship
Both organisms compete for survival in the relationship
The maximum reproductive capacity of a population under optimum environmental conditions