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Carroll 2006 Fossil Genes
Carroll 2006 Fossil Genes

... are also vital to animal behavior and survival, particularly the sense of smell. O n e walk in the park with a dog provides many examples of how their "view" of the world is shaped by their acute sense of smell. Many other mammals also have powerful senses of smell, which are used t o find food, ide ...
PopCycle Tutorial
PopCycle Tutorial

... An introduction to population genetics in the upper left corner of the window, with eggs and sperm floating and swimming around in it. The darker gametes carry allele A; the lighter ones carry allele a. The allele frequencies in the default gene pool are 0.5 for A and 0.5 for a. We want to simulate ...
Experimental design II: artificial selection
Experimental design II: artificial selection

... Faster loss of additive genetic variance in small populations due to inbreeding. This equation only models the loss of variance from inbreeding, not due to selection. And it does not incorporate the effect of mutation on maintained variance. Under these assumptions, the optimal selection strategy th ...
B = Bit recording gene
B = Bit recording gene

... SAME because bacteria cell wall keeps these gene products internally so that they won’t be mixed up, only the Signaling gene need to be different. Thus different bacteria types can have almost identical genes. This could be a plausible property of a Multi Cell system. ...
AP Biology Name Ms. Provost/Mrs. Walmsley Using Bioinformatics
AP Biology Name Ms. Provost/Mrs. Walmsley Using Bioinformatics

... The project also successfully mapped the genomes of other species, including the fruit fly, mouse and Escherichia coli. The location and complete sequence of the genes in each of these species are available for anyone in the world to access via the Internet. Why is this information important? Being ...
Chromosomal theory of inheritance
Chromosomal theory of inheritance

... Muller  and  Muta*on   •  What  new  class  of  mutagen  arose  in  the  late   40’s?  What  sparked  its  study?  Why  was  its   use  in  research  delayed  for  so  long?   –  Mustard  gas  was  discovered  as  a  mutagen   by ...
bb2013_03 - Territory Stories
bb2013_03 - Territory Stories

... Whether cattle are horned or polled is determined by their genes. The main gene that influences polledness is the horn/poll gene and all cattle have this gene. In some cattle this is the only gene affecting polledness, but there are 2 other genes that can also affect polledness in some cattle. These ...
SELECTION ON BOTH HAPLO AND DIPLOPHASE IN
SELECTION ON BOTH HAPLO AND DIPLOPHASE IN

... Organisms in which the two phases show a comparable extension and/or multiplication occurs in both, are called haplo-diplonts or haplo-diploids. The former term should be preferred since the latter is also applied to sexual dimorphism for ploidy, as in bees. Examples of such intermediate organisms c ...
(PPI) node degrees with SNP counts
(PPI) node degrees with SNP counts

... will correlate with degree, especially for certain SNP classes? Testing these claims requires gene, mRNA transcript, and/or protein product lengths (and maybe intron lengths). Note that the SNPContigLocusId table includes pointers to mRNA and protein records, and includes the NCBI UIDs for each reco ...
File
File

... only seven females and eight males. One of the early colonists apparently carried a recessive allele for retinitis pigmentosa, a progressive form of blindness that afflicts homozygous individuals. The frequency of the allele that causes this disease is ten times higher on Tristan da Cunha than in th ...
marker-assisted backcrossing - Rice Knowledge Bank
marker-assisted backcrossing - Rice Knowledge Bank

... Background selection Theoretical proportion of the recurrent parent genome is given by the formula: 2n+1 - 1 2n+1 Where n = number of backcrosses, assuming large population sizes ...
The fall and rise of Dr Pangloss: adaptationism and the Spandrels
The fall and rise of Dr Pangloss: adaptationism and the Spandrels

... Box 3. On constraints versus selection: which is the correct null hypothesis? The problem with constraints, as Antonovics and van Tienderen22 insightfully remarked, is that it is difficult to envision what the null hypothesis is. A potentially useful method that can be applied to test both spandreli ...
The Evolution of tRNA-Leu Genes in Animal
The Evolution of tRNA-Leu Genes in Animal

... also unusual in comparison to more conservative species like D. pulex. In the context of tRNA-Leu genes, P. longicarpus merits particular attention, since the L and L2 again occur as a tandem pair. In this case they are between the COX1 and COX2 genes, which is the standard position of the L2 gene i ...
Picking Holes in the Concept of Natural Selection
Picking Holes in the Concept of Natural Selection

... tractable after all. If the theory of natural selection cannot possibly be true for conceptual or logical reasons, why go to the trouble to argue that other causal factors are more important than selection in evolution? If natural selection is not even a possible cause, how can it play any role at a ...
Gene ORGANizer: linking genes to the organs they
Gene ORGANizer: linking genes to the organs they

... body parts are rare or completely absent (e.g. bone, face, larynx, urethra, teeth, fingers and spinal cord). Second, samples used for expression analyses are usually obtained from specific developmental stages, taken postmortem, and extracted from particular parts of the organ. Thus, the data collec ...
Practice Questions (269 KB pdf file)
Practice Questions (269 KB pdf file)

... B. Plants collected along an altitudinal cline vary in size when grown in their native habitat, yet when grown in a greenhouse they are all the same size. C. Limpets growing high in the intertidal zone, where they experience heavy wave action, are more conical than individuals of the same species gr ...
Natural Selection
Natural Selection

... The white fur of the Arctic hares may make it more difficult for fox and other predators to locate hares against the white snow. ...
Oligonucleotide-directed mutagenesis of gene IX of bacteriophage
Oligonucleotide-directed mutagenesis of gene IX of bacteriophage

... obscure. As the nucleotide sequence of gene IX predicts that its translation product is only 32 amino acids long (3,20) and gene IX amber mutants are now available, we have carried out coupled transcription-translation analysis to find out whether the 3,500 dalton protein could be the product of thi ...
here. - Signet
here. - Signet

... therefore “breed true” producing only polled offspring. The half of the progeny that carry one copy of each gene (Pp) will still have the potential to produce both polled and horned offspring as explained in the above example and this is why it is difficult to eradicate horns all together. Interesti ...
The Power of Memes - Dr Susan Blackmore
The Power of Memes - Dr Susan Blackmore

... genetic evolution can respond. By the time the genes could evolve a hardwired predilection for making fires and an aversion to performing rain dances, completely different fads could arise and hold sway. The genes can develop only broad, long-term strategies to try to make their bearers more discrim ...
natural selection
natural selection

... 29. Short answer • Why is inherited variation important in a species? It is essential for natural selection to result in a new species. ...
99 Bernard Lec 1
99 Bernard Lec 1

... Preferred Contact: discussion after lecture Other possibilities: visit my office Friday 11-12 a.m. (1/2 mile SW from here) ...
word - MIT Computer Science and Artificial Intelligence Laboratory
word - MIT Computer Science and Artificial Intelligence Laboratory

... species or population (Haldane, 1932; Eshel, 1972; Wilson, 1980). This is known as the “group selection” theory. Although contested by latest evolutionary theorists, group selection has for a time been able to account for why individual agents cooperate. One dominant group of theorists interprets “f ...
Inheritance of Color And The Polled Trait
Inheritance of Color And The Polled Trait

... from the other parent, it is the dominant P that shows up in the individual’s appearance as the polled trait. The only time the recessive horn gene (p) can express itself is when the dominant P gene is not present. There are three possible gene combinations involving the dominant polled gene (P). Th ...
The modern - Biology Learning Center
The modern - Biology Learning Center

... good of the group or the species. He illustrated this distinction by showing that selection on humans works against the good of the species. He also showed that selection on the sex ratio maximizes an individual’s share of the genes contributed to future generations, but it does not maximize the pop ...
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The Selfish Gene

The Selfish Gene is a book on evolution by Richard Dawkins, published in 1976. It builds upon the principal theory of George C. Williams's first book Adaptation and Natural Selection. Dawkins used the term ""selfish gene"" as a way of expressing the gene-centred view of evolution as opposed to the views focused on the organism and the group, popularising ideas developed during the 1960s by W. D. Hamilton and others. From the gene-centred view follows that the more two individuals are genetically related, the more sense (at the level of the genes) it makes for them to behave selflessly with each other. This should not be confused with misuse of the term along the lines of a selfishness gene.An organism is expected to evolve to maximise its inclusive fitness—the number of copies of its genes passed on globally (rather than by a particular individual). As a result, populations will tend towards an evolutionarily stable strategy. The book also coins the term meme for a unit of human cultural evolution analogous to the gene, suggesting that such ""selfish"" replication may also model human culture, in a different sense. Memetics has become the subject of many studies since the publication of the book.In the foreword to the book's 30th-anniversary edition, Dawkins said he ""can readily see that [the book's title] might give an inadequate impression of its contents"" and in retrospect thinks he should have taken Tom Maschler's advice and called the book The Immortal Gene.
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