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CB4 – Natural Selection and GM
CB4 – Natural Selection and GM

... 2. Choose _____________ that show these characteristics 3. Select the best ____________ from parents to breed the next generation 4. Repeat the process over many ___________ ...
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... Prentice Hall Review Book pages 71-86 (all information) Textbook-You should refer to chapters 15, 16 and 17, however, you are not responsible for all information. You should have a clear understanding of: ...
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... How is the number of phenotypes related to the number of genes that control the trait? What type of distribution curve can be seen with polygenic inheritance? Tell the 3 ways natural selection can affect the distributions of phenotypes in a bell-shaped curve? Be able to identify examples of each of ...
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... On human cooperation III. • These culturally transmitted practices presuppose advanced cognitive and linguistic capacities, possibly accounting for the distinctive forms of altruism found in our species. ...
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Evolution Terms and Pictures

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Cultural Evolution models and their tragic flaws

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... developmental processes that can explain trends in evolutionary change that have thus far been inpenetrable, eg: genetic assimilation. This is the mechanism, recently established, where elements of behavioural sequences, eg: song, or elaborate nest building are built over evolutionary time by some e ...
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No Slide Title
No Slide Title

... Feldman and Cavalli-Sforza (1989) modelled the relationship between the spread of the gene for lactose absorption and the spread of the cultural trait. Their analysis supported the hypothesis that the cultural practise of dairy farming created the selection pressure favouring this gene. ...
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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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