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Anthropology: Human Origins Week 3 Notes

by: McKenna Johnson

Anthropology: Human Origins Week 3 Notes Anth 140-01

Marketplace > St. Cloud State University > anthropology, evolution, sphr > Anth 140-01 > Anthropology Human Origins Week 3 Notes
McKenna Johnson
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About this Document

These notes focus on a beginning level of evolution and DNA.
Human origins diversity
Matthew Tornow
Class Notes
25 ?




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This 2 page Class Notes was uploaded by McKenna Johnson on Friday January 29, 2016. The Class Notes belongs to Anth 140-01 at St. Cloud State University taught by Matthew Tornow in Summer 2015. Since its upload, it has received 24 views. For similar materials see Human origins diversity in anthropology, evolution, sphr at St. Cloud State University.

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Date Created: 01/29/16
Friday, January 29, 2016 Anthropology Week 3 • Evolution: Change over time. This includes the behavior, anatomy, environment, etc. (Bio-evolution is the evolution of living things - which is our focus). - Microevolution is referring to the population level. - Macroevolution is referring to species level (this results in new species) - Our focus is on group evolution, not individual evolution. • Population: A smaller subsection of a species where mates are usually found. - Usually meaning that typically there are mates to be found however there are many factors that would keep people from mating within a population/species. Things such as religion and geography. *Note: Most of the time macroevolution is thought of as taking place at the population level. • Evolutionary Species: A group of organisms that have and share a lineage. Meaning, as a group, or entity, have an independent fate apart from other groups or entities. • Anagenesis: Change of a single species over time. It is gradual and can include changes such as color, size, and behavior. Something that causes a split into two or more, whether that is geographically, • behaviorally, or other in a single species is called Cladogenesis *Note that family trees and species trees are similar in many ways. - There are two kinds of relationships when referring to family and species trees. •Tokogenetic relationships which is when two organisms come together and form one organism. •Phylogenetic relationships are when one becomes two. Page 1 of 2 Friday, January 29, 2016 - You can think of it as tokogenetic relationships as moving forward, or down, in the family/species tree and phylogenetic relationships as looking back, or up, in the family/species tree. • Gene: heredity passed from parents to offspring - Allele: is what the gene says, or what the information contained in the gene. • To give an example: think of the eye color. Genes from each parent will be given to the child to determine what color eyes it will have. The allele is what color is passed on. DNA and Eukaryotic Cell: • Eukaryotic Cell is a cel with a nucleus - 5 parts of the cell that will apply to evolution, that we will look at, are: 1. Membrane - the cell wall 2. Cytoplasm - the liquid that everything is suspended in 3. Nucleus - the control center of the cell 4. Chromatin - DNA and protein 5. Ribosomes - the proteins DNA contains is made up of 3 components: Phosphate 1. 2. Sugar Adenine always pairs with 3. Bases (there are possible bases) Thymine. Guanine always pairs with Cytosine. 1. Adenine (A) 2. Thymine (T) 3. Guanine (G) 4. Cytosine (C) • When you combine one phosphate, one sugar, and one base you get a nucleotide. Page 2 of 2


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