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Genome Growth and the Evolution of the Genotype
Genome Growth and the Evolution of the Genotype

... into being in the first place. The main idea, in a nutshell, is this: the genes that stably exist in a genome share the common feature that, when they were created, they produced a selective advantage for the organism. But when a new gene is created, it not only produces its current phenotypic effec ...
Evolutionary Psychology 101
Evolutionary Psychology 101

... had significantly more sex partners than those poets whose work was just so-so (Nettle & Clegg, 2006). If evolution is all about survival, why do people spend countless hours writing novels, learning instruments, and climbing the world’s highest peaks? A rich body of literature in evolutionary psych ...
PowerPoint used by Dr. Garland in the video
PowerPoint used by Dr. Garland in the video

... (e.g., home range size). Evolutionary causes: Why has this diversity evolved? Natural selection: what is the benefit? ...
Gene Expression in Thyroxin-Induced Metamorphosing Axolotl Hearts
Gene Expression in Thyroxin-Induced Metamorphosing Axolotl Hearts

... The Mexican axolotl (Ambystoma mexicanum) is a unique model to study vertebrate heart development for several reasons. In addition to the wild-type animal, there is also an embryonic lethal condition caused by a homozygous recessive mutation in cardiac gene “c” [1,2]. These mutant embryonic hearts d ...
Evolution of Synonymous Codon Usage in Neurospora tetrasperma
Evolution of Synonymous Codon Usage in Neurospora tetrasperma

... Mouchiroud 1999; Duret 2000; Stoletzki and Eyre-Walker 2006). The hypothesis that codon usage is driven by selection has been supported by findings that codon usage biases are correlated to tRNA abundance (Ikemura 1982, 1985; Duret 2000). In addition, codon usage bias has been positively correlated ...
Charles Darwin`s reputation: how it changed during the twentieth
Charles Darwin`s reputation: how it changed during the twentieth

... ways. The growth of the Modern Synthesis is central to this narrative. The Modern Synthesis developed gradually from about 1930, and became the mainstream basis of evolutionary theory for the rest of the century. Section 4 will attempt to explain the basis of Darwin’s changing reputation as a result ...
Scholarly Interest Report
Scholarly Interest Report

... developing eye, and in the determination of cell number and cell size in the brain and spinal cord. We are using the zebrafish model to address these questions, as it is well suited for a multifaceted approach that includes classical and molecular genetic analysis, as well as experimental manipulati ...
Biology - PCMBToday
Biology - PCMBToday

... Chemistry and Inorganic ...
Divergent Selection Drives Genetic Differentiation in an
Divergent Selection Drives Genetic Differentiation in an

... zones [19–21], little is known about the form and intensity of selection acting on the specific genes affecting reproductive isolation between divergent taxa. Relative to other forms of reproductive isolation, adaptations that reduce the frequency of mating among neighboring populations (i.e. pre-ma ...
A review of The Structure of Evolutionary Theory
A review of The Structure of Evolutionary Theory

... his multi-authored textbook, nearly 30 years old – and then, only to be criticized for what Gould sees as the short shrift it gives to macroevolution. Why, then, should readers interested in sociobiology, evolutionary psychology or a biological “take” on human nature even bother with TSET at all? Be ...
Atomism, epigenesis, preformation and preexistence: a clarification
Atomism, epigenesis, preformation and preexistence: a clarification

... 1981: 15) would he endow the atoms, in his Syst2me de la Nature (Maupertuis, 1974), with some kind of ‘intelligence’, ‘memory’, ‘appetite’ and ‘aversion’ to explain the constancy of the species-specific form. However, he still considered errors in the combination of the atoms to be possible, which w ...
Here - UIC Computer Science - University of Illinois at Chicago
Here - UIC Computer Science - University of Illinois at Chicago

... linear genotype and capable of retaining a certain extent of functional complexity due to its phenotype as expression trees. Distinguished from other traditional machine learning methods, GEP searches the global optimum through a population of candidate solutions in parallel and is able to produce s ...
Darwinism and Meaning
Darwinism and Meaning

... and more specifically, by the awareness of our severely limited capacity to “leave something of oneself” for the future. In other words, selection gave us not so much a fear of inevitable mortality per se, but rather, a fear of what inevitable mortality denies: legacy, i.e., the legacy of one’s cons ...
Demographic history and climatic adaptation in ecological
Demographic history and climatic adaptation in ecological

... test, DHEW has been proved to be relatively insensitive to demography or population structure (Zeng et al. 2007). Nielsen et al. (2005) introduced the composite likelihood ratio method (CLR) to model the allele frequency spectrum to detect signals of selection. Genetic differentiation (FST) based me ...
KCSE ONLINE REVISION BIOLOGY FORM 4 NOTES This
KCSE ONLINE REVISION BIOLOGY FORM 4 NOTES This

... ii) Give an example of this law  In an experiment, Drosophila (fruit fly) with long wings were crossed with those having short wings. Assume letter L denotes gene for wing size. The gene for long wings is dominant to that for short wings  the genes for dominant are LL and for recessive ll.  State ...
Cyclostome embryology and early evolutionary history of vertebrates
Cyclostome embryology and early evolutionary history of vertebrates

... position on the vertebrate tree, most fossil agnathans will have to be regarded as stem gnathostomes. Therefore, the split between the cyclostomes and the gnathostomes will not be equivalent only to the possession of the jaw (Janvier 1996). Molecular data also seem to favor the monophyly of the cycl ...
Sexual selection and sympatric speciation van Doorn, Gerrit
Sexual selection and sympatric speciation van Doorn, Gerrit

... genes is poorly understood. Most empirical data are available for gamete recognition systems of marine invertebrate species. For these systems, several (mostly verbal) models have been suggested in order to explain positive selection on male gamete-recognition proteins. They all propose that sperm s ...
Evolutionary Challenges of Extreme Environments (Part 2)
Evolutionary Challenges of Extreme Environments (Part 2)

... strictly on its evolutionary dependence on natural selection. Adaptation and accommodation in eyes, as well as many other kinds of physiological regulation, acclimatization, behavior, learning, reproductive and developmental patterns, phenotypic plasticity, symbiosis, human culture and so on, are su ...
Plant sex chromosome evolution
Plant sex chromosome evolution

... likely to invade partially selfing co-sexual populations than are male-sterility mutations. However, they can be advantageous in gynodioecious populations, where the presence of females favours increased pollen output, even if it is accompanied by reduced female fertility. Overall, therefore, a cose ...
- roar@UEL - University of East London
- roar@UEL - University of East London

... At the beginning of the twentieth century the particulate views of inheritance promoted by Mendelians were seen as incompatible with the models of gradual, incremental change proposed by the Darwinians. Thanks to the mathematical modelling of the population dynamics of gene pools by Fisher, Haldane ...
Evolutionary dynamics of the genomic region around the
Evolutionary dynamics of the genomic region around the

... O. sativa and O. rufipogon. In O. rufipogon, the recent directional selection was found in the Pi- ...
Using new tools to solve an old problem: the evolution of
Using new tools to solve an old problem: the evolution of

... past adaptive processes, and gene expression mechanisms that describe the organization of genomes into phenotypes. Here, we argue that the evolution of endothermy could now be elucidated based on a joint, and perhaps unprecedented, effort of researchers from the fields of genomics, physiology and ev ...
molecular biology and genetics
molecular biology and genetics

... 1. Chromosomes show specific forms and sizes 2. Number of chromosomes is characteristic for each species 3. In most plants and animals chromosomes were present ...
Vestiges of the natural history of development: historical holdovers
Vestiges of the natural history of development: historical holdovers

... Page 2 of 11 ...
Regents Biology
Regents Biology

...  DNA – codes for _______________  Proteins are made of _______________  Amino acids are coded for by ________  The 3 bases are called _________  Codons are translated using the “Universal” ...
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Evolutionary developmental biology

Evolutionary developmental biology (evolution of development or informally, evo-devo) is a field of biology that compares the developmental processes of different organisms to determine the ancestral relationship between them, and to discover how developmental processes evolved. It addresses the origin and evolution of embryonic development; how modifications of development and developmental processes lead to the production of novel features, such as the evolution of feathers; the role of developmental plasticity in evolution; how ecology impacts development and evolutionary change; and the developmental basis of homoplasy and homology.Although interest in the relationship between ontogeny and phylogeny extends back to the nineteenth century, the contemporary field of evo-devo has gained impetus from the discovery of genes regulating embryonic development in model organisms. General hypotheses remain hard to test because organisms differ so much in shape and form.Nevertheless, it now appears that just as evolution tends to create new genes from parts of old genes (molecular economy), evo-devo demonstrates that evolution alters developmental processes to create new and novel structures from the old gene networks (such as bone structures of the jaw deviating to the ossicles of the middle ear) or will conserve (molecular economy) a similar program in a host of organisms such as eye development genes in molluscs, insects, and vertebrates. Initially the major interest has been in the evidence of homology in the cellular and molecular mechanisms that regulate body plan and organ development. However, subsequent approaches include developmental changes associated with speciation.
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