Changes in Gene Pools over Time
Copyright © 2018 C.E. by Dustin Jon Scott
[Last Update: June 6th, 2018]
II. Evolution & Phylogeny
Increasing brain size (allometric cranial ontogeny) in land-vertebrates.
II.a. The Modern Synthesis
1.) Hereditary Variations
2.) Genes Mutate — New alleles
3.) Populational Process — allele frequencies
4.) Natural Selection can alter populations beyond the original range of variation by increasing the frequency of alleles that give rise to new phenotypes.
5.) Speciation is the origin of two or more species from a single common ancestor
II.a. How Evolution Works: Mechanisms for Change
Copy number variation and the secret of life - with Aoife McLysaght
Information, Evolution, and intelligent Design - With Daniel Dennett
II.a-1.) Mechanisms for Change: Mutation
Natural selection is the primary guiding hand for evolutionary change. This was first recognized by Charles Darwin on his tour of the Galapagos Islands during his famouse voyage aboard HMS Beagle.
II.b. Genetic Relationships
Our Family Tree
II.b-1.) Prokaryotes versus Eukaryotes
Prokaryote evolution might not be describable according to the standard “tree” model (Bapteste et al.).