Darwinian Common Descent: Fact, Faith or Both?
... random mutation in an organism’s genotype (genetic makeup) produces a characteristic that enables the organism to survive better in its environment than other organisms that lack this characteristic. In time, the better-adapted organism produces more offspring, which share the parent’s genotype (gen ...
... random mutation in an organism’s genotype (genetic makeup) produces a characteristic that enables the organism to survive better in its environment than other organisms that lack this characteristic. In time, the better-adapted organism produces more offspring, which share the parent’s genotype (gen ...
23_EvolutionofPopulations_HardyWeinberg
... – During a drought, large-beaked birds were more likely to crack large seeds and survive – The finch population evolved by natural selection ...
... – During a drought, large-beaked birds were more likely to crack large seeds and survive – The finch population evolved by natural selection ...
draft - Nelson Education
... Genetic information is stored in DNA molecules. DNA is a double helix consisting of pentose sugars, phosphate groups, and nitrogenous bases. Mutations, which are changes in the sequence of nitrogenous bases in DNA, can occur due to environmental factors or errors in replication. Genomes of different ...
... Genetic information is stored in DNA molecules. DNA is a double helix consisting of pentose sugars, phosphate groups, and nitrogenous bases. Mutations, which are changes in the sequence of nitrogenous bases in DNA, can occur due to environmental factors or errors in replication. Genomes of different ...
Evolutionary origins of invasive populations
... intermediate number of generations might select for enhanced evolvability at the population level, and might also lead to the maintenance of genetic variation (Turelli and Barton 2004; Meyers et al. 2005). Larger timescale fluctuations would increasingly be experienced as constant conditions, and wo ...
... intermediate number of generations might select for enhanced evolvability at the population level, and might also lead to the maintenance of genetic variation (Turelli and Barton 2004; Meyers et al. 2005). Larger timescale fluctuations would increasingly be experienced as constant conditions, and wo ...
E46
... through both GLS and OLS. MSEs of GLS appeared to be consistently smaller than those counterparts of OLS, but differences were not obvious. It could be concluded that OLS is almost equally efficient in estimating fixed effects. All the bias of estimated variances approached zero by using MINQUE (0/1 ...
... through both GLS and OLS. MSEs of GLS appeared to be consistently smaller than those counterparts of OLS, but differences were not obvious. It could be concluded that OLS is almost equally efficient in estimating fixed effects. All the bias of estimated variances approached zero by using MINQUE (0/1 ...
Reading the Book of Life: Contingency and Convergence
... In addition, SCM maintains that unlike the specific adaptations of particular species, convergence on certain “biological properties” suggests that they are facets of a robust evolutionary process that will, despite the non-linearity of their actual sequence, inevitably manifest at some spatiotempo ...
... In addition, SCM maintains that unlike the specific adaptations of particular species, convergence on certain “biological properties” suggests that they are facets of a robust evolutionary process that will, despite the non-linearity of their actual sequence, inevitably manifest at some spatiotempo ...
Genetic Variation Underlying Sexual Behavior and Reproduction
... Synopsis. Selection depletes additive genetic variation underlying traits important in fitness. Intense mating competition and female choice may result in negligible heritability in males. Females often appear to choose mates, however, suggesting genetic variation in males which is important to fema ...
... Synopsis. Selection depletes additive genetic variation underlying traits important in fitness. Intense mating competition and female choice may result in negligible heritability in males. Females often appear to choose mates, however, suggesting genetic variation in males which is important to fema ...
Detecting the form of selection from DNA sequence data
... about the pattern of selection. A significantly negative D is consistent with hitchhiking, but it is consistent with many other processes as well. If H is significant also, then background selection or a recent population expansion can be ruled out. Conversely, if D is significant but not H, other e ...
... about the pattern of selection. A significantly negative D is consistent with hitchhiking, but it is consistent with many other processes as well. If H is significant also, then background selection or a recent population expansion can be ruled out. Conversely, if D is significant but not H, other e ...
Evolution of Behavior: Phylogeny and the Origin of Present
... important observation and can help explain the form that many behavior patterns take in animals today. The difficulty that these pioneering researchers and others faced in trying to use a comparative approach to study behavioral evolution was the need for large data sets of closely related species. U ...
... important observation and can help explain the form that many behavior patterns take in animals today. The difficulty that these pioneering researchers and others faced in trying to use a comparative approach to study behavioral evolution was the need for large data sets of closely related species. U ...
Margaret Mead: Taking Note - Christina Beard
... *1st half of her career: attempting to save indigenous cultures from the onslaught of Western culture. *2nd half of her career: attempting to save Western culture from itself. Mead studied at DePauw University and Barnard College [Now part of Columbia University Mead’s mother and grandmother were bo ...
... *1st half of her career: attempting to save indigenous cultures from the onslaught of Western culture. *2nd half of her career: attempting to save Western culture from itself. Mead studied at DePauw University and Barnard College [Now part of Columbia University Mead’s mother and grandmother were bo ...
Quantitative-Genetic Models and Changing Environments
... and have been the subject of intense investigation (Charlesworth and Charlesworth 1998; Chapter 9 in Ferrière et al. 2004). Since many mutations affect several traits and the developmental pathways are complex, their fitness effects may also depend on the genetic background in which they occur, and ...
... and have been the subject of intense investigation (Charlesworth and Charlesworth 1998; Chapter 9 in Ferrière et al. 2004). Since many mutations affect several traits and the developmental pathways are complex, their fitness effects may also depend on the genetic background in which they occur, and ...
genetic diversity and diversity of environment: mathematical aspects
... and the adaptive values in the kth niche are Wk and 1. There will be a stable equilibrium if E, ck Wk > 1 and ckl/Wk > 1, or in other words if T > 1 and Wh < 1, where I is the mean of the Wk weighted by the niche sizes Ck but not by the q and Wh is the correspondingly weighted harmonic mean of the W ...
... and the adaptive values in the kth niche are Wk and 1. There will be a stable equilibrium if E, ck Wk > 1 and ckl/Wk > 1, or in other words if T > 1 and Wh < 1, where I is the mean of the Wk weighted by the niche sizes Ck but not by the q and Wh is the correspondingly weighted harmonic mean of the W ...
THE EFFECT OF ARTIFICIAL SELECTION ON THE
... economically important, quantitative traits. To be detected as significant a gene must have at least a moderate effect (Bovenhuis and Shrooten 2002), and must be segregating with allele frequencies that are not too extreme, or else the probability of one of the small number of sires used being heter ...
... economically important, quantitative traits. To be detected as significant a gene must have at least a moderate effect (Bovenhuis and Shrooten 2002), and must be segregating with allele frequencies that are not too extreme, or else the probability of one of the small number of sires used being heter ...
Parallel speciation with allopatry
... parallel speciation to date from nature, was cited in support of this view. However, laboratory studies show that parallel speciation can occur between allopatric populations. Furthermore, the weight of evidence indicates an allopatric stage in the origin of the stickleback species. ...
... parallel speciation to date from nature, was cited in support of this view. However, laboratory studies show that parallel speciation can occur between allopatric populations. Furthermore, the weight of evidence indicates an allopatric stage in the origin of the stickleback species. ...
Evolutionary Thought in Psychology: A Brief History
... Before he gets to the heart of the matter, Plotkin sets the stage with two background chapters. In the first he suggests that psychology and evolutionary biology have curiously parallel histories. They both have long non-scientific provinces. They have had their share of schisms and controversies, o ...
... Before he gets to the heart of the matter, Plotkin sets the stage with two background chapters. In the first he suggests that psychology and evolutionary biology have curiously parallel histories. They both have long non-scientific provinces. They have had their share of schisms and controversies, o ...
Two Historical Perspectives - University of Hawaii at Hilo
... developmental biology would play a crucial role in understanding evolution. The Synthesis changed all that. In the course of unifying the Darwinian and Mendelian traditions in evolutionary biology, the Synthesis drove a wedge between developmental biology and the population genetic understanding of ...
... developmental biology would play a crucial role in understanding evolution. The Synthesis changed all that. In the course of unifying the Darwinian and Mendelian traditions in evolutionary biology, the Synthesis drove a wedge between developmental biology and the population genetic understanding of ...
Pop gen cont - Faculty Web Pages
... selection) changes in allele frequencies due to chance fluctuations • Sewall Wright played a key role in developing this concept in the 1930s • In other words, allele frequencies may drift from generation to generation as a matter of chance ...
... selection) changes in allele frequencies due to chance fluctuations • Sewall Wright played a key role in developing this concept in the 1930s • In other words, allele frequencies may drift from generation to generation as a matter of chance ...
The Americanization of German Culture? - John-F.-Kennedy
... means (books before the nineteenth century were expensive), and a fairly high degree of cultural literacy. Basically, the term "popular culture" refers to cultural forms that undermine or abolish these conditions of access. In this sense, American society was especially effective for a number of rea ...
... means (books before the nineteenth century were expensive), and a fairly high degree of cultural literacy. Basically, the term "popular culture" refers to cultural forms that undermine or abolish these conditions of access. In this sense, American society was especially effective for a number of rea ...
CHAPTER - 2 CULTURAL RELATIVISM
... Accordingly, it is not possible to separate the essence of a culture from its natural form. So CR underlines the equal validity of different cultures within a given socio-political space. It implies that we cannot estimate any ...
... Accordingly, it is not possible to separate the essence of a culture from its natural form. So CR underlines the equal validity of different cultures within a given socio-political space. It implies that we cannot estimate any ...