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...  who bears more offspring ...
EP topics
EP topics

... Boehm, C. (1997). The natural selection of altruistic traits. Human Nature, 10, 205252. Mulder, M. B. (2007). Hamilton’s rule and kin selection: the Kipsigis case. Evolution and Human Behavior, 28, 299-312. Gintis, H. et al. (2003). Explaining altruistic behavior in humans. Evolution and Human Behav ...
The challenge: sifting through piles of variants
The challenge: sifting through piles of variants

... • Nonsense variants in an exon without canonical splice sites around it likely false positive (why?) • Splice sites in very small introns (e.g. <15bp) likely not that critical • If the LoF allele matches the ancestral allele, likely not really LoF (why?) ...
Rabbit Gene Pool Natural Selection Lab 2016
Rabbit Gene Pool Natural Selection Lab 2016

... 1. Count and place 10 brown beans and 10 white beans into the bag. This represents the offspring (babies) of two gray rabbits (Bb fur color for both parents). 2. Without looking into the bag, choose two beans to represent the two genes that babies get from their parents and place beans together on t ...
Organic Evolution
Organic Evolution

...  Charles Darwin (1809-1882)  Influenced by  5-year expedition on the Beagle as the naturalist  Charles Lyell’s Principles of Geology ...
Chapter 13 How Populations Evolve
Chapter 13 How Populations Evolve

... 13.1 A sea voyage helped Darwin frame his theory of evolution  In 1859, Darwin published On the Origin of Species by Means of Natural Selection, – presenting a strong, logical explanation of descent with modification, evolution by the mechanism of natural selection, and – noting that as organisms ...
Selection and Biotechnology: the best of both worlds
Selection and Biotechnology: the best of both worlds

... phenotype, without knowledge of the number of genes that affect the trait or the effects of each gene. In this quantitative genetic approach to genetic improvement, the genetic architecture of traits of interest has essentially been treated as a ‘black box’. Despite this, the substantial rates of ge ...
popgen2c1 - eweb.furman.edu
popgen2c1 - eweb.furman.edu

... 1. Historically, all phenotypic variation was interpreted as adaptive. - many studies confirmed that under one environmental condition or another, there was a difference in fitness among variations. - Mayr (1963) "it is altogether unlikely that two genes would have identical selective value under al ...
Mechanisms of Evolution Lab
Mechanisms of Evolution Lab

... Which population shows the greatest reproductive success and therefore are the most biologically fit? ...
ESUHSD Marking Period 4: January 3 to February 11, 2011 Biology
ESUHSD Marking Period 4: January 3 to February 11, 2011 Biology

... and abiotic factors determine the best fit organisms. ...
Evolutionary biology looks at behavior genetics
Evolutionary biology looks at behavior genetics

... Third, polymorphic genes with meaningful effects on personality appear uncommon. Examples do exist; e.g., the 7-repeat allele of DRD4 associated with ADHD has a relative frequency of about 20% in European populations (e.g., Hattori et al., 2009). But are such polymorphisms common? It is perhaps hard ...
APBiology 11 - This area is password protected
APBiology 11 - This area is password protected

Ch23_Population Genetics
Ch23_Population Genetics

... Departure from any of these conditions usually results in evolutionary change!   It is also common for natural populations to be in HW equilibrium for specific genes ...
Evolution chapter 7 PPT
Evolution chapter 7 PPT

... • One misconception about natural selection ...
Evolution
Evolution

... trees graphically model evolutionary history and “descent with modification.” However, some organisms and viruses are able to transfer genetic information horizontally. The process of evolution explains the diversity and unity of life, but an explanation about the origin of life is less clear. Exper ...
Lecture 6
Lecture 6

... Attempts to distribute individuals evenly amongst niches relies on the assumption that offspring will tend to be close to parents randomly selects a couple of parents, produce 2 offspring each offspring compete in a pairtournament for surviving with the most similar parent (steady state) i.e. the pa ...
Alleles - Amazon S3
Alleles - Amazon S3

... Alternate allele: an allele in the population that doesn’t matches the human reference Major allele: most common allele for a given position. In this example, C. Note not always does major allele = reference allele. Minor allele: any allele besides the major allele. In this example, A Minor allele f ...
GLYPHOSATE RESISTANCE Background / Problem
GLYPHOSATE RESISTANCE Background / Problem

...  Probability of fixation of a favorable allele will be a function of initial allele frequency, selection coefficient, heterozygous effect, and population size  Favorable alleles won’t necessarily go to fixation when drift is involved ...
Chapter 5
Chapter 5

... because heterozygotes are less susceptible to malarial infections. d. a balanced polymorphism/ homozygotes without the sickle allele acquire immunity to the malarial parasite and transfer that immunity to their offspring that carry the sickle allele. ...
Selection-of-animals..
Selection-of-animals..

Evolving "elementary sight" strategies in predators via Genetic
Evolving "elementary sight" strategies in predators via Genetic

... Witness the evolution of the predator "strategy". Imitate the evolution of the parts in the brain that handle the visual informal interpretation . Try to understand the development stages in the strategy. Try to analyze the usage of the photoreceptors as part of the brain function . Test if the deve ...
Lecture Slides
Lecture Slides

...  Choose 2 random crossover points & copy midsegment from p1 to offspring  Look for elements in mid-segment of p2 that were not copied  For each of these (i), look in offspring to see what copied in its place (j)  Place i into position occupied by j in p2  If place occupied by j in p2 already fi ...
implied at law - Buckley`s Mix
implied at law - Buckley`s Mix

... which ought not in justice to be kept, is very beneficial, and therefore much encouraged. It lies for money which, ex aequo et bono, the defendant ought to refund; it lies for money paid by mistake; or upon a consideration which happens to fail; or for money got through imposition, (express or impli ...
Genetic Algorithms
Genetic Algorithms

... both parents pass their chromosomes onto their offspring. The two chromosomes come together and swap genetic material. In binary GA s crossover is performed by swapping a part of binary strings between two solutions at a ...
Recurrent divergent selection in alfalfa
Recurrent divergent selection in alfalfa

... Band intensity reflects the number of genotypes with polymorphisms in each population ...
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Group selection



Group selection is a proposed mechanism of evolution in which natural selection is imagined to act at the level of the group, instead of at the more conventional level of the individual.Early authors such as V. C. Wynne-Edwards and Konrad Lorenz argued that the behavior of animals could affect their survival and reproduction as groups.From the mid 1960s, evolutionary biologists such as John Maynard Smith argued that natural selection acted primarily at the level of the individual. They argued on the basis of mathematical models that individuals would not altruistically sacrifice fitness for the sake of a group. They persuaded the majority of biologists that group selection did not occur, other than in special situations such as the haplodiploid social insects like honeybees (in the Hymenoptera), where kin selection was possible.In 1994 David Sloan Wilson and Elliott Sober argued for multi-level selection, including group selection, on the grounds that groups, like individuals, could compete. In 2010 three authors including E. O. Wilson, known for his work on ants, again revisited the arguments for group selection, provoking a strong rebuttal from a large group of evolutionary biologists. As of yet, there is no clear consensus among biologists regarding the importance of group selection.
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