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population
population

... The Hardy-Weinberg Principle • The Hardy-Weinberg principle describes a population that is not evolving • If a population does not meet the criteria of the Hardy-Weinberg principle, it can be concluded that the population is evolving • The Hardy-Weinberg principle states that frequencies of alleles ...
Biol 467 Evolution Study Guide 2 p 1 1) Describe and contrast the
Biol 467 Evolution Study Guide 2 p 1 1) Describe and contrast the

... 17) Define inbreeding coefficient. Contrast the effects of drift and inbreeding on changes in genotype and allele frequencies, with and without the effect of selection against deleterious recessives. 18) Explain the relationships of population size, heterozygosity (H), and the rate population growth ...
Slides Lec08 - the ant life
Slides Lec08 - the ant life

... Explain how to infer phylogenies Describe different methods to infer phylogenies Discuss difficulties in phylogenetic analysis Give an example how phylogenetic tree is used to test a hypothesis ...
Microevolution - cloudfront.net
Microevolution - cloudfront.net

... 2) What are the three aspects in a population we examine in order to understand how evolution is occurring in a population. 3) If a population had 2500 individuals that are diploid, how many total alleles would be present? 4) In a population of 1000 humans, 840 possess the ability to roll their tong ...
Notes Chapter 16 The Evolution of Populations and Species
Notes Chapter 16 The Evolution of Populations and Species

... average traits, while a few individuals have extreme traits.  Variations in genotype arise by mutation, recombination, and the random fusion of gametes.  The total genetic formation available in a population is called the gene pool.  Allele frequencies in the gene pool do not change unless acted ...
Culture - The State University of Zanzibar
Culture - The State University of Zanzibar

... Culture is very recent and was a long time in the making. ...
C) Geographic Isolation
C) Geographic Isolation

... colonization of a new habitat by a small group of individuals is called ...
TFSD Unwrapped Standard 3rd Math Algebra sample
TFSD Unwrapped Standard 3rd Math Algebra sample

... Students explain the importance of cells as they relate to the organization and structure of complex organisms, differentiation and specialization during development, and the chemical reactions necessary to sustain life. Students describe the functions of cell structures. Students use the theory of ...
Cultural Contact and Identity
Cultural Contact and Identity

... the constructivist or interpretivist view (Kashima, 1998). Both these traditions assume, to varying degrees, that cultures are discrete entities that exist within more or less defined territorial boundaries and can be described in terms of values, attitudes, or practices that characterize them. Howe ...
Chapter One Outline
Chapter One Outline

... OR: variability and heritability, the two foundations of natural selection cannot alone cause evolution… BUT EVOLUTION DOES OCCUR, because the above five conditions can never be met. So genetic equilibrium does not occur…over time By looking at these five conditions, we can isolate the cause of the ...
What is linguistic anthropology,
What is linguistic anthropology,

No, Humans Have Not Stopped Evolving
No, Humans Have Not Stopped Evolving

... have made the recent targets of selection highly visible to us. It turns out, for example, that descendants of farmers are much more likely to have a greater production of salivary amylase, a key enzyme that breaks down starches in food. Most people alive today have several copies of the gene that c ...
Lecture Chpt. 24 Evolutn Show 4 Variatn
Lecture Chpt. 24 Evolutn Show 4 Variatn

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Modeling Natural Selection Lab: Procedure

... Did evolution seem to occur in your population of M&Ms? Explain. ...
Slides-Brian_Charlesworth-Sex_and_molecular_evolution
Slides-Brian_Charlesworth-Sex_and_molecular_evolution

... probability density of x at time t, xi is the deterministic change in the frequency of the ith haplotype, Cij is the covariance between the random changes in frequencies of haplotypes i and j. The Cij are all proportional to 1/Ne; this means that we can multiply both sides by Ne, and work with Net ...
Description
Description

... 2. explain the evidence for evolution by natural selection, Charles Darwin’s contribution to the theory of evolution, and the Modern Synthesis; 3. summarize the interactions that control genetic variation at the population level; 4. determine if a species is evolving or is in genetic equilibrium usi ...
Deciphering the genetic footprints of domestication in
Deciphering the genetic footprints of domestication in

... The process of domestication started with the shift from hunter/gatherer to agrarian societies. Plants were selected for crop farming based on specific phenotypes. This stringent selection often results in a genetic bottleneck that marked the genome. Much remains unknown about the demographic histor ...
Chapter 9 Maintenance of Genetic Diversity
Chapter 9 Maintenance of Genetic Diversity

... Chance & directional selection removing variation Balancing selection impeding its loss The balance between these factors depends strongly on population size and differs across characters. ...
Types of Natural Selection
Types of Natural Selection

... Types of Natural Selection ...
12A.G - Illinois State Board of Education
12A.G - Illinois State Board of Education

... THE GENE SCENE REFLECTION DIRECTIONS ...
q 2 - cloudfront.net
q 2 - cloudfront.net

... • To see what forces lead to evolutionary change, we must examine the circumstances in which the Hardy-Weinberg law may fail to apply. There are five: • mutation • gene flow • genetic drift • nonrandom mating • natural selection ...
AP Biology Notes Outline Enduring Understanding
AP Biology Notes Outline Enduring Understanding

... mating, the absence of migration, and a net lack of mutations can lead to loss of genetic diversity. Human-directed processes such as genetic engineering can also result in new genes and combinations of alleles that confer new phenotypes. Focusing on evolutionary change in populations, we can define ...
AP Biology Notes Outline Enduring Understanding 1.A Big Idea 1
AP Biology Notes Outline Enduring Understanding 1.A Big Idea 1

... mating, the absence of migration, and a net lack of mutations can lead to loss of genetic diversity. Human-directed processes such as genetic engineering can also result in new genes and combinations of alleles that confer new phenotypes. Focusing on evolutionary change in populations, we can define ...
Oct 30 - University of San Diego
Oct 30 - University of San Diego

... offspring have a selective advantage ...
Natural Selection
Natural Selection

... oceans, etc. • We have little fossil record of beach organisms and alpine communities. ...
< 1 ... 81 82 83 84 85 86 87 88 89 ... 146 >

Dual inheritance theory

Dual inheritance theory (DIT), also known as gene–culture coevolution or biocultural evolution, was developed in the 1960's through early 1980s to explain how human behavior is a product of two different and interacting evolutionary processes: genetic evolution and cultural evolution. In DIT, culture is defined as information and/or behavior acquired through social learning. One of the theory's central claims is that culture evolves partly through a Darwinian selection process, which dual inheritance theorists often describe by analogy to genetic evolution.'Culture', in this context is defined as 'socially learned behavior', and 'social learning' is defined as copying behaviors observed in others or acquiring behaviors through being taught by others. Most of the modeling done in the field relies on the first dynamic (copying) though it can be extended to teaching. Social learning at its simplest involves blind copying of behaviors from a model (someone observed behaving), though it is also understood to have many potential biases, including success bias (copying from those who are perceived to be better off), status bias (copying from those with higher status), homophily (copying from those most like ourselves), conformist bias (disproportionately picking up behaviors that more people are performing), etc.. Understanding social learning is a system of pattern replication, and understanding that there are different rates of survival for different socially learned cultural variants, this sets up, by definition, an evolutionary structure: Cultural Evolution.Because genetic evolution is relatively well understood, most of DIT examines cultural evolution and the interactions between cultural evolution and genetic evolution.
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