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Evolution_of_Populations2012
Evolution_of_Populations2012

DISRUPTING GENETIC EQUILIBRIUM
DISRUPTING GENETIC EQUILIBRIUM

... variability—individuals are homozygous for all their genes tested. This result of genetic drift makes the species vulnerable to extinction. ...
How do Populations Evolve
How do Populations Evolve

... is born with a mutation that gives it an extra thick coat in an arctic (cold) environment, that bear will be able to use more of its food energy for reproduction and growth than for keeping warm. This bear will then survive and reproduce more offspring with thick fur like itself. Over time, the popu ...
BIOLOGY CONTENT STANDARDS REVIEW
BIOLOGY CONTENT STANDARDS REVIEW

... 2. Explain how lethal alleles are maintained in a gene pool (e.g., Tay Sachs disease). Students know variation within a species increases the likelihood that at least some members of a species will survive under changed environmental conditions. 3. What is genetic variation? 4. Explain how genetic v ...
From M. Tomasello, The Cultural Origins of Human Cognition
From M. Tomasello, The Cultural Origins of Human Cognition

... entire cultural history. Each child who understands her conspecifics as intentional/mental beings like herself -- that is, each child who possesses the social-cognitive key to the historically constituted cognitive products of her social group -- can now participate in the collectivity known as hum ...
Name: AP Biology Driftworm Demo Evolution is the process by
Name: AP Biology Driftworm Demo Evolution is the process by

... amazing diversity of that life. Evolution is often described as "descent with modification." But what exactly is being modified? Evolution only occurs when there is a change in gene frequency within a population over time. These resulting genetic differences can be passed on to the next generation o ...
Tom Cameron`s presentation
Tom Cameron`s presentation

... Females want the best genes to combine with their own to give their offspring the best chance of survival (i.e. natural selection). Have a variety of offspring as environment is unpredictable (bet-hedging) ...
Name: ____________ Pd.: ______ Date: What is the advantage of
Name: ____________ Pd.: ______ Date: What is the advantage of

... 17. The movement of alleles from one population to another is called ______gene flow_____________ 18. The less gene flow that occurs between two populations, the more genetically ____different__________ the two populations become. 19. A lack of gene flow [increases / decreases] the chance that two ...
Educational Items Section Evolution Atlas of Genetics and Cytogenetics in Oncology and Haematology
Educational Items Section Evolution Atlas of Genetics and Cytogenetics in Oncology and Haematology

... Until the 19th century in Occident, the most largely believed theory was fixism. The species always are what they have been since their creation. They are fixe and never change because the world has been created by God. This theory is similar to creationism. ...
Evolution Populations 17.2
Evolution Populations 17.2

... The Hardy-Weinberg Principle states that allele frequencies in a population should remain constant unless one or more factors cause those frequencies to change. These factors include: non-random mating, small population size, immigration or emigration, mutations, and natural selection. Populations a ...
File - Mrs. Lorenz`s Science Class
File - Mrs. Lorenz`s Science Class

... The Hardy-Weinberg Principle states that allele frequencies in a population should remain constant unless one or more factors cause those frequencies to change. These factors include: non-random mating, small population size, immigration or emigration, mutations, and natural selection. Populations a ...
Chapter 16 summary
Chapter 16 summary

... Darwin’s theory of evolution by natural selection explained how life on Earth changed, or evolved, over many generations. What Darwin did not know was how heritable traits were passed down through each generation. The study of genetics helps scientists understand the relationship between inheritance ...
What is Evolution?
What is Evolution?

CultureCase – Living near museums and galleries is important for
CultureCase – Living near museums and galleries is important for

... Obviously, the large concentration of institutions like the V&A in central London meant that those living in the inner boroughs were more likely to attend museums and galleries. This remained true, even after all other factors (such as education and income) were held constant. ...
theory - Cengage Learning
theory - Cengage Learning

Natural selection
Natural selection

... Five conditions are required to maintain genetic equilibrium from generation to generation: • there must be random mating, • the population must be very large, • there can be no movement into or out of the population, • there can be no mutations, and • there can be no natural selection. ...
what is culture - Libertyville High School
what is culture - Libertyville High School

... not isolated or stagnant. Cultures are growing, changing, and interacting with one another. One example of the interaction of cultures is cultural diffusion, in which ideas, people, and products are exchanged among different societies. This can occur in many ways, but most often through trade. The p ...
Biology I - WEB . WHRSD . ORG
Biology I - WEB . WHRSD . ORG

... 3.5 Describe how Mendel’s laws of segregation and independent assortment can be observed through patterns of inheritance (e.g., dihybrid crosses). 3.6 Use a Punnett Square to determine the probabilities for genotype and phenotype combinations in monohybrid crosses. 5. Evolution and Biodiversity Cent ...
Theory of Evolution Notes - Effingham County Schools
Theory of Evolution Notes - Effingham County Schools

... Darwin’s observations supported Lyell’s theory that daily geologic processes can add up to great change over a _________________ period of time. ...
Lecture Ch 23 The evolution of populations
Lecture Ch 23 The evolution of populations

... organism, but can be beneficial when the environment is changing. Mutations’ effects can be seen in faster reproducing species (bacteria, insects) 6. Nonrandom mating a. Inbreeding-mating between closely-related partners b. assortative mating-individuals select partners that are like themselves and ...
cummings and clegg - nucleotide sequence diversity at the
cummings and clegg - nucleotide sequence diversity at the

... selection sweep? What is the relationship between background selection and reduced diversity? 6. What is alcohol dehydrogenase a good gene for population genetics studies? 7. What features make barley an ideal species to study background selection? 8. Describe the sequence strategy. 9. Describe the ...
Printable Version
Printable Version

... 4. A more or less distinct group of individuals within a species who are reproductively isolated from other groups. In other words, they restrict their mate selection to members of their own group. This is usually due to geographic and/or social barriers to mating with outsiders. 5. The study of bio ...
Chapter 4 Heredity and Evolution
Chapter 4 Heredity and Evolution

... Evolution is defined as a two-stage process: 1. The production and redistribution of variation (inherited differences between individuals). 2. Natural selection acting on this variation (whereby inherited differences, or variation, among individuals differentially affect their ability to reproduce s ...
genetic variation
genetic variation

... (Jelinski, 1997), and can be maintained through arboreal reproduction if the diversity was acquired through recombination, introgression, or somatic mutation (Rasmussen and Kollmann, 2007). The variation is regulated by differential selection pressures such as climate, soil, disturbance, geographica ...
Abstract
Abstract

... The archaeological record of the human settlement of the Pacific describes two discreet periods of range expansion. Some of the earliest evidence of modern humans outside of Africa is found in the Pacific dated to 60,000 years ago. By 29,000 years ago humans had settled the intervisible islands exte ...
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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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