New User Special Price Expires in

Let's log you in.

Sign in with Facebook


Don't have a StudySoup account? Create one here!


Create a StudySoup account

Be part of our community, it's free to join!

Sign up with Facebook


Create your account
By creating an account you agree to StudySoup's terms and conditions and privacy policy

Already have a StudySoup account? Login here

Week 2 Notes Complete

by: Jorge Solorzano

Week 2 Notes Complete 101

Marketplace > 101 > Week 2 Notes Complete
Jorge Solorzano


Preview These Notes for FREE

Get a free preview of these Notes, just enter your email below.

Unlock Preview
Unlock Preview

Preview these materials now for free

Why put in your email? Get access to more of this material and other relevant free materials for your school

View Preview

About this Document

Include 2-1-16 and 2-3-16 Second file for 2-3-16 is the start of the new powerpoint for Genetics
Introduction to anthropology
Dr. Bettina Arnold Anthropology 101 Introduction to anthropology
Class Notes
25 ?




Popular in Introduction to anthropology

Popular in Department

This 3 page Class Notes was uploaded by Jorge Solorzano on Monday February 8, 2016. The Class Notes belongs to 101 at a university taught by Dr. Bettina Arnold Anthropology 101 Introduction to anthropology in Winter 2016. Since its upload, it has received 15 views.


Reviews for Week 2 Notes Complete


Report this Material


What is Karma?


Karma is the currency of StudySoup.

You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!

Date Created: 02/08/16
2-3-16 1. 252 m.y.a. life on earth almost died a. >90% of life on earth almost died i. Permian Period (290-248 m.y.a.) 2. Modification to Darwinian Evolution a. ****Punctuated Equilibria **** i. Periods of gradual evolutionary change interrupted by periods of rapid change & sudden appearance of new species ii. Niles Eldridge, Stephen J. Gould 1. Evolution is not always slow and steady 2. Simple opportunity determines rate of change iii. Rate of evolutionary Change Depends on (Darwin) 1. Environment 2. Internal Variability 3. Today a. Stasis i. No change b. Anagenesis i. Slow gradual change over long period of time c. Cladogenesis i. Relatively rapid change 1. Resulting in appearance of new species 2. Extinction is the driving force behind cladogenisis 4. Basic Duality of life a. Economic i. Food ii. If an adaptation works in economic terms, it will be recorded in reproductive terms b. Genealogical i. Sex c. Evolutionary change usually entails a modification of the adaptations for living, due to a changing environment i. Mammals experienced adaptive radiation 64 m.y.a. 1. A process in which organisms diversify rapidly due to a change in environment making more resources available 2. Not because they were an improvement 3. Because they were preadapted to occupy altered environment after the dinosaurs a. Cretaceous Period i. Dinosaur World 2-1-16 1. Malthaus + Time + Darwin’s observations + Natural Selection a. Key Elements i. Increasingly scarce resources  ii. Competition  iii. Differential Reproductive Success  iv. Transmission of Only a selection of genetic traits  1. Particular set of behavioral/physical traits, will lead to better success v. Preservation of favorable variations, removal of unfavorable ones from the gene pool  vi. Speciation 1. Due to geographic/reproductive isolation 2. Darwin’s Dilema (1836-1858) a. Publication of the Origin of the Species b. Darwins Contributions i. Importance of individuals (on exam) 1. Individuals able or not to reproduce 2. Natural selection operates on individuals, favorably or unfavorably, but it is population that evolves. a. Individual= unit of natural selection b. Population= unit of evolution ii. Variability is Key 1. Some are polytypic a. Lots of variability b. Significant external, morphological, variability in such species main obstacle is reproduction i. No genetic incompability 3. Gregor Mandel (1822-1884) a. How does variation appear in populations in the first place? i. Darwin could not answer this b. “Principles of Inheritance” i. All traits Mendel study were luckily monogenic 1. Discrete traits, coded for by a single gene o a single chromosome 2. Also referred to as a. Mendelian Traits ii. Particulate nature of genes 1. Expressed or Suppressed a. Will you see the trait or not? i. Dominant or Recessive 4. Evolution Today: Synthetic Model a. Darwin/Wallace Theory of Natural Selection b. Mendels Principle of inheritance c. Modern Genetics i. Discovery of DNA in 1962 d. Key Concepts 2-1-16 i. Classification System ii. Role of extinction in evolution iii. Rate of evolutionary change 5. Classification a. Organizational system, standardized to recognize living beings i. Based on comparison of series of objects according to shared or different characteristics ii. Both morphological and behavior 1. observable b. Organize information consistently and able to be universal i. How much variability is enough to justify defining a new species? 1. Lumpers a. Fewer categories, more members to category 2. Splitters a. More categories, fewer members to category c. Phylogenies i. Genetic-species family tree ii. Representations of evolutionary changes in a species iii. Evolutionary change graph/picture iv. Behavior does not fossilize 1. Makes it difficult d. Binomial Nomenclature i. Car von Linne (1707-1778) 1. Also Carolous Linnaeus ii. Classification System of the Ideal type 1. Homo Sapiens Sapiens 2. Genus Species Subspecies iii. Species are able to procreate or “interbreed” 6. Extinction and Evolution a. Extinction accelerates evolution i. Driving force behind evolution? ii. No single Phenomenon is responsible for evolution 1. Gene Mutation 2. Species Isolation 3. Natural Selection 4. Genetic Drift 5. Extinction a. Produces valuable commodity of more ecological space within which these forces can operate


Buy Material

Are you sure you want to buy this material for

25 Karma

Buy Material

BOOM! Enjoy Your Free Notes!

We've added these Notes to your profile, click here to view them now.


You're already Subscribed!

Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'

Why people love StudySoup

Jim McGreen Ohio University

"Knowing I can count on the Elite Notetaker in my class allows me to focus on what the professor is saying instead of just scribbling notes the whole time and falling behind."

Allison Fischer University of Alabama

"I signed up to be an Elite Notetaker with 2 of my sorority sisters this semester. We just posted our notes weekly and were each making over $600 per month. I LOVE StudySoup!"

Jim McGreen Ohio University

"Knowing I can count on the Elite Notetaker in my class allows me to focus on what the professor is saying instead of just scribbling notes the whole time and falling behind."


"Their 'Elite Notetakers' are making over $1,200/month in sales by creating high quality content that helps their classmates in a time of need."

Become an Elite Notetaker and start selling your notes online!

Refund Policy


All subscriptions to StudySoup are paid in full at the time of subscribing. To change your credit card information or to cancel your subscription, go to "Edit Settings". All credit card information will be available there. If you should decide to cancel your subscription, it will continue to be valid until the next payment period, as all payments for the current period were made in advance. For special circumstances, please email


StudySoup has more than 1 million course-specific study resources to help students study smarter. If you’re having trouble finding what you’re looking for, our customer support team can help you find what you need! Feel free to contact them here:

Recurring Subscriptions: If you have canceled your recurring subscription on the day of renewal and have not downloaded any documents, you may request a refund by submitting an email to

Satisfaction Guarantee: If you’re not satisfied with your subscription, you can contact us for further help. Contact must be made within 3 business days of your subscription purchase and your refund request will be subject for review.

Please Note: Refunds can never be provided more than 30 days after the initial purchase date regardless of your activity on the site.