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Peas in a Pod: Expression of Undesirable Genes in Ferrets
Peas in a Pod: Expression of Undesirable Genes in Ferrets

... present in some bloodlines more than others. In large litters, generally more than 8 or 9 kits in an average-sized jill, kits are sometimes born with deformities that appear to be a result of uterine crowding. Crooked faces and crooked or misplaced teeth are two salient examples. If these traits sho ...
- Purugganan Lab
- Purugganan Lab

... tests are founded in the expectation that polymorphism and divergence levels at a locus should be proportional under neutrality. The Hudson–Kreitman–Aguade test (the HKA test; Hudson et al., 1987), which compares polymorphism and divergence at a gene of interest to one or more neutral reference loci ...
9 Selection on Correlated Characters
9 Selection on Correlated Characters

... Equation”. For example, Figure 9.1 shows the fitness function for beak depth of the Galapagos finches during the ! 1977 drought. In this graph, birds with a beak depth of about 9.5 mm have a relative fitness of 1.0, which means that they have average survival. Relative fitness is greater than 1.0 fo ...
Fulltext PDF - Indian Academy of Sciences
Fulltext PDF - Indian Academy of Sciences

... typically arrived at very similar results even though their mathematical approaches, and the simplifying assumptions they made, were often very different. Yet, there were serious differences of opinion between Fisher and Wright on the implications of their mathematical results for our understanding ...
The naturalization of humans - laral
The naturalization of humans - laral

... The concept of mind is the key concept used to set humans apart from the rest of reality, to view them as “special”. Only humans have mind (at least human mind) and mind is completely different from the rest of the natural world. The dualism between mind and brain (or body or nature) is very ancient ...
Genetic Merit
Genetic Merit

10.2 Evidence for Evolution
10.2 Evidence for Evolution

... In the 1970s, biologists Peter and Rosemary Grant went to the Galápagos Islands. They wanted to re-study Darwin’s finches. They spent more than 30 years on the project. Their efforts paid off. They were able to observe evolution by natural selection actually taking place. While the Grants were on th ...
Theory of `Revitalization Movement` by Anthony F
Theory of `Revitalization Movement` by Anthony F

... Steward 1953). It is hypothesized that events or happenings of various types have common structures independent of local cultural differences. After a severe physical disaster, for example, in cities in Japan, the United States, and Germany, it will postulate a sequence of happening what in return w ...
Why organisms age: Evolution of senescence under positive
Why organisms age: Evolution of senescence under positive

Evo-Devo, Devo-Evo, and Devgen
Evo-Devo, Devo-Evo, and Devgen

... depends upon the frequency of gene variants within a population. In the other case, evolution depends on variations of gene expression between populations. As Ron Amundson has noted, the new union might by characterized as “devgen-popgen”; the genes are not going away when these models are synthesiz ...
is the population size of a species relevant to its evolution?
is the population size of a species relevant to its evolution?

... (1973, 1976, 1992) has shown that if amino acid mutations are slightly deleterious, then protein variation should be insensitive to population size. However, her theory does not easily account for the insensitivity of the rate of protein evolution to N. Cherry (1998), building on the work of Hartl e ...
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Document

... contrasting environments. ...
Chapter 12
Chapter 12

... digestive enzymes, and sweat glands  Chloride ions are not absorbed into the cells of a person with cystic fibrosis but are excreted in the sweat.  Without sufficient chloride ions in the cells, a thick mucus is secreted. ...
Genetic approaches in comparative and evolutionary physiology
Genetic approaches in comparative and evolutionary physiology

... generation (actual parents) and the larger, more inclusive set of all potential parents. In the context of a selection experiment, the heritability of a trait is the fraction of the selection differential that is transmitted to the next generation, manifest as a change in the average value of the tr ...
Conservation Implications of Niche Conservatism and
Conservation Implications of Niche Conservatism and

... The analytically tractable model described in Box 13.1 helps to clarify when evolution may rescue populations from extinctions. However, the model does not describe extinction directly, for it assumes continuous and deterministically variable densities, whereas individuals are discrete and numbers c ...
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Study aid 2
Study aid 2

... 7. Some species of stick insects have wings and others do not. Recent research suggests that wings have been gained and lost several times during the evolution of stick insects. For the species shown in the phylogeny below, which of the following hypotheses is most parsimonious (requires fewer chara ...
7.2 Complex Patterns of Inheritance
7.2 Complex Patterns of Inheritance

Levels of Selection: A Place for Cultural Selection
Levels of Selection: A Place for Cultural Selection

... people characterized by certain practices, may survive more effectively than others into future generations because of those practices, whether or not it happens in direct competition with other groups. Cultural practices, on the other hand, may simply spread across individuals within the short peri ...
Cross-Cultural Psychology Bulletin
Cross-Cultural Psychology Bulletin

... reduced to a category label that has no function. then just mushes these together under the rubric of culture; there is no theory of culture. I pick on Phinney, but this holds true for almost everyone else who writes about what people do, think and feel and connect those individual acts and cognitio ...
Social participation and cultural policy: a position
Social participation and cultural policy: a position

... funding of arts, museums, monuments, public broadcasting and other public media is the core business of Dutch cultural policy, as it is in other European countries. There is of course an ongoing debate about the amount of money to be spent on culture. However, the second mission – social disseminati ...
Evolutionary Computing and Autonomic Computing: Shared Problems, Shared Solutions?
Evolutionary Computing and Autonomic Computing: Shared Problems, Shared Solutions?

... way it looks and/or acts. The genotype denotes the code, the “digital DNA”, that encodes or represents this phenotype. It is an important to note that variation and selection act in different spaces. – Variation operators act on genotypes. Mutation and recombination never take place on phenotypical ...
Definition of Evolution Evolutionary Force
Definition of Evolution Evolutionary Force

... how that same feature evolves through genetic drift in an idealized population over the same number of generations ...
10 Evolutionary Psychology: A Critique
10 Evolutionary Psychology: A Critique

... Adaptive problems are problems whose solutions enhance the ability to survive or reproduce. And the adaptive problems faced by our Pleistocene ancestors ranged from avoiding predators and inedible flora to acquiring mates and forming social alliances. Since these problems required very different beh ...
Bacteria are different: Observations, interpretations
Bacteria are different: Observations, interpretations

... for at least contemporary eukaryotes, it is sufficient (and sufficiently problematic) to develop a comprehensive genetic theory of adaptive evolution based on variation generated from within by mutation (broadly defined to include transposition and chromosomal rearrangement) and recombination among ...
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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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