Limited time offer 20% OFF StudySoup Subscription details

Virginia Commonwealth University - ANTH 103 - ANTH 103 - Class Notes

Created by: Bailey Notetaker Elite Notetaker

> > > > Virginia Commonwealth University - ANTH 103 - ANTH 103 - Class Notes

Virginia Commonwealth University - ANTH 103 - ANTH 103 - Class Notes

This preview shows pages 1 - 2 of a 6 page document. to view the rest of the content
background image Molecular anthropology ​ is the use of genetic analysis of dna sequences to assess  evolutionary links 
 
Timeline of ideas about the nature of life 
-instantaneous creation 
-linnaeus (1750) 
-lamarck (1800) 
-darwin (1850) 
-lyell (1850) 
 
Inheritance of acquired characteristics 
​(lamarck)  -Individuals develop new features during their lifetime by striving toward some goal 
-giraffe stretches neck reaching for food 
-acquired characteristics passed onto offspring 
 
Uniformitarianism
​ (lyell)  -the idea that natural forces at work today also explain past events 
-deep time 
 
Darwin's initial observations 
1.individuals in a population differ from each other 
2. These differences are 
​heritable​- passed from parent to offspring   3. Population growth outstrips resources 
 
Alfred Russell wallace
​ (1823-1913)   -contacted darwin in 1858 
-darwin was encouraged to publish… 
-on the origins of species by means of natural selection (1859) 
 
Darwin's inferences 
1. There will always be competition over resources: most offspring will not survive to  reproduce  2. Individuals w features that allow them to outcompete others for limited resources will  have more  ​successful​ offspring  3. Offspring will look like their parents, and the population will change through time to  resemble the individuals that are best equipped  4. Given enough time, new species will evolve    Darwin's mechanism for producing adaptation 
-
natural selection  - ​adaptation​: anatomical, physiological or behavioral response of organisms/ populations to the  environment  
 
background image Kettlewell moth experiment 
1.variation in moth population 
2. Some individuals blended in better 
3. Those moths lived to reproduce more 
4. The population of moths changed over time 
5. Natural selection -> evolution 
 
Adaptation to 
​current​ conditions is the only  Adaptive today, gone tomorrow: hyper-specialization danger  
 
Which of the below options needs to be present first for natural selection to occur? 
Variation 
 
Natural selection acts on 
The variation on an 
​individual ​but then might lead to the evolution to a new species   
Somatic cells
​: liver cells, nerve cells, muscle cells  Gametes ​: ovum, sperm  Chromosome: coiled up dna 
Humans: 46 chromosomes 
 
The structure of dna 
-Deoxyribonucleic acid 
-Watson and crick 
Nucleotide (side of ladder (sugar, phosphate)) 
Base pair (ladder rungs (T,A,,C,G)) 
 
Proteins 
Hemoglobin: oxygen transport 
Collagen: connective tissue 
Actin / myosin: muscles 
Adrenaline: 
 
Dna: sequence of 4 different bases  
Protein: chain of amino acid building blocks 
Codon: sequences of three (example: C,A,A)  
 
Mutation
​: any error that occurs in the process of copying dna that can be transmitted to  daughter cells 
 
 
 
 

This is the end of the preview. Please to view the rest of the content
Join more than 18,000+ college students at Virginia Commonwealth University who use StudySoup to get ahead
School: Virginia Commonwealth University
Department: Evolutionary Anthropology
Course: Intro to Anthropology
Professor: Amy Verrelli
Term: Spring 2019
Tags: Anthropology
Name: ANTH 103
Description: These notes are from week 2 of class on 1/22!
Uploaded: 01/30/2019
6 Pages 54 Views 43 Unlocks
  • Better Grades Guarantee
  • 24/7 Homework help
  • Notes, Study Guides, Flashcards + More!
Join StudySoup for FREE
Get Full Access to Virginia Commonwealth University - Class Notes - Week 2
Join with Email
Already have an account? Login here
×
Log in to StudySoup
Get Full Access to Virginia Commonwealth University - Class Notes - Week 2

Forgot password? Reset password here

Reset your password

I don't want to reset my password

Need help? Contact support

Need an Account? Is not associated with an account
Sign up
We're here to help

Having trouble accessing your account? Let us help you, contact support at +1(510) 944-1054 or support@studysoup.com

Got it, thanks!
Password Reset Request Sent An email has been sent to the email address associated to your account. Follow the link in the email to reset your password. If you're having trouble finding our email please check your spam folder
Got it, thanks!
Already have an Account? Is already in use
Log in
Incorrect Password The password used to log in with this account is incorrect
Try Again

Forgot password? Reset it here