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Genes, Environment and Sport Performance
Genes, Environment and Sport Performance

... ‘single-gene-as-magic-bullet’ philosophy adopted by some practitioners. Similarly, although extensive involvement in training and practice is needed at elite levels, it has become apparent that the acquisition of expertise is not merely about amassing a requisite number of practice hours. Although a ...
Rate Asymmetry After Genome Duplication Causes Substantial
Rate Asymmetry After Genome Duplication Causes Substantial

... However, a previous study of gene pairs formed by WGD in the yeast Saccharomyces cerevisiae found conflicting topologies among neighbor-joining (NJ) trees drawn from different loci and suggested that this conflict was the result of ‘‘asynchronous functional divergence’’ of duplicated genes (Langkjae ...
(a) (b)
(a) (b)

... • Some types of aneuploidy appear to upset the genetic balance less than others, resulting in individuals surviving to birth and beyond • These surviving individuals have a set of symptoms, or syndrome, characteristic of the type of aneuploidy Copyright © 2008 Pearson Education Inc., publishing as P ...
Genetics Unit-- Make a Face Lab
Genetics Unit-- Make a Face Lab

... Red Hair: Red hair is another gene for hair color present on a different chromosome.It blends its effect with other hair colors. Redness of the hair seems to be caused by a single gene pair with two alleles, red (G) or no red (g), and displays incomplete dominance. Thus, if a person has two genes f ...
Who`s the Father?
Who`s the Father?

... to the next? Since the dawn of agriculture, humans have been trying to improve and increase their food supply. Historically, this was done by selecting the best plants and animals, then breeding them to get the tastiest, hardiest, most nutritious, or most appealing offspring. But no one really under ...
Transposable elements, genes and recombination in a 215
Transposable elements, genes and recombination in a 215

... a genome designated Am that is closely related to the genome of T. urartu, the A genome donor for tetraploid and hexaploid wheats. The large genome of T. monococcum (1C =5600 Mb; Bennett and Leitch 1995) is approximately 12 times larger than the genome of rice and 40 times larger than the genome of ...
No relationship between canalization and developmental stability of
No relationship between canalization and developmental stability of

... 2005; Debat, Debelle & Dworkin, 2009). Environmental canalization is thus seen as the opposite of phenotypic plasticity (Debat & David, 2001). The distinction between the two components of developmental homeostasis was first proposed by Waddington (1957) who hypothesized that variation buffered by c ...
CRITIQUE The character or the variation: the genetic analysis of the
CRITIQUE The character or the variation: the genetic analysis of the

... phenotypes of the strain, or population, analysed fit a normal distribution. This, of itself, tells us nothing of the genetic basis of resistance or, indeed, of the level of genetic variation in the strain or population. The concentrationmortality relationship of a particular strain provides evidenc ...
StanfordEncyclopedia_2016_Inheritance
StanfordEncyclopedia_2016_Inheritance

... genetically coded information (DNA sequence), the similarities with nuclear inheritance allows it to be seen as not involving a distinct inheritance system, if this notion is understood to refer to the way hereditary information is stored and transmitted. Indeed, views that focus on multiple inherit ...
Alfred Henry Sturtevant - National Academy of Sciences
Alfred Henry Sturtevant - National Academy of Sciences

... the egg by the action of genes in the mother. In 1946 he showed that intersexuality in a species hybrid—that of the repleta and neorepleta species of Drosophila—is an unusually subtle case of maternal inheritance conditioned by an autosomal dominant gene. In the early 1920’s Sturtevant and Morgan ha ...
EPB PHC 6000 EPIDEMIOLOGY FALL, 1997
EPB PHC 6000 EPIDEMIOLOGY FALL, 1997

... opportunity to study influence of genetics in the absence of shared environmental factors. b) Can look at children of discordant MZ twins. If the rate of the disorder in the children of the twins is similar, suggests genetic susceptibility that may be prevented (not expressed) in the presence of env ...
Guidance on the Use of Biochemical and Molecular Markers
Guidance on the Use of Biochemical and Molecular Markers

... The molecular distance component is computed on the differences observed on a set of markers. Different types of molecular markers and distances can be used. In the case of the study done in France on maize, 60 SSR markers and Roger’s distance have been used. It is important that sufficient markers, ...
Genome-Wide Gene Expression Effects of Sex Chromosome
Genome-Wide Gene Expression Effects of Sex Chromosome

... Following the generation of the C(1)M4,y2/ C(1;Y)3,In(1)FM7,w1,m2; Aut; Aut strain, crosses between this genotype and the parental Autw132 strain were used to generate the experimental genotypes (Figure 1). We chose this approach rather than screening progeny for exceptional karyotypes resulting fr ...
TEV_v7_BY
TEV_v7_BY

... Transposable element-derived (TE) sequence dominates the landscape of mammalian genomes and can modulate gene function by dysregulating transcription and translation. Virtually all TEs present in the C57BL/6J reference mouse genome are drawn from three distinct classes, namely short interspersed nuc ...
Title: Evolution of dosage compensation in Anolis carolinensis, a
Title: Evolution of dosage compensation in Anolis carolinensis, a

... the autosomes because of their unique inheritance patterns (Meisel and Connallon 2013). In species with XX/XY sex determination, females have two copies of the X chromosome, which means that, similar to the autosomes, deleterious recessive genes can be shielded from selection by dominant alleles in ...
2010 syllabus
2010 syllabus

... Course overview / What is human genetics? Intro to concepts and tools Tues (includes Mendelian and non08/31/10 Mendelian traits, pedigree analysis, tools of mol genetics, trait vs disease) Forces remodeling the human Thurs genome: DNA mutation and repair, ...
Systematic Studies on the Family Cucurbitaceae
Systematic Studies on the Family Cucurbitaceae

... The only gene reported to influence the mechanical characteristics of the rind (toughness and flexibility) was the t gene for the thin, tender rind, bursting when cut, from 'California Klondike' (35), renamed e for explosive rind by Poole (1944). So far, no study has described the inheritance of rin ...
Determinism
Determinism

... • Environmental Determinism - the view that the physical environment, rather than social conditions, determines culture. • Biological Determinism - the hypothesis that biological factors such as an organism's individual genes completely determine how a system behaves or changes over time. ...
A virulence-associated gene microarray: a tool for
A virulence-associated gene microarray: a tool for

... S. aureus strains carry a range of genes that confer resistance to a growing list of antibiotics and vary greatly in their susceptibility profiles. The level of resistance conferred on any individual strain by a particular gene is now known to depend not only on the presence of related genes but als ...
Slide 1
Slide 1

... white) shown in Fig 3 (a) and (c). Regions shown in red are similar between all three strains. Conversely, Wien strain SarB71 is more closely related to the Panama strain SarB40 than is Wien strain SarB 72. Mapsolver™ also indicates the nature and location of the genomic differences between these st ...
The Schistosoma gene discovery program: state of the art
The Schistosoma gene discovery program: state of the art

... the redundancy in the libraries. Results of cluster analyses can be obtained at the WHO Schistosoma Genome Network WWW site [http://www.nhm.ac.uk/ hosted_sites/schisto/clusters/intro.html]. The analyses revealed the existence of 4405 and 640 unique genes of S. mansoni and S. japonicum, respectively. ...
genomic flux: genome evolution by gene loss and
genomic flux: genome evolution by gene loss and

... One may infer that the vast majority of sequences introduced by horizontal transfer would fail to make a minimal contribution and would be lost. Several factors may explain the failure to make a contribution. (i) The introduced DNA does not encode a product. (ii) The acquired genes are not expressed ...
Gene Pool Recombination in Genetic Algorithms
Gene Pool Recombination in Genetic Algorithms

... pool defined by the selected parent population. The biologically inspired idea of restricting the recombination to the alleles of two parents for each offspring is abandoned. The latter recombination we will call two-parent recombination (TPR). The idea of using more than two parents for recombinat ...
Mendelian Genetics
Mendelian Genetics

... 1 Phenotypic traits are controlled by pairs of genes which act as individual units of inheritance 2 In genes that have multiple alleles (variations) the presence of some traits, called dominant traits, mask the presence of recessive traits 3 Gene pairs segregate randomly during gamete formation with ...
Foundations of Biology - Geoscience Research Institute
Foundations of Biology - Geoscience Research Institute

< 1 ... 67 68 69 70 71 72 73 74 75 ... 841 >

Quantitative trait locus

A quantitative trait locus (QTL) is a section of DNA (the locus) that correlates with variation in a phenotype (the quantitative trait). The QTL typically is linked to, or contains, the genes that control that phenotype. QTLs are mapped by identifying which molecular markers (such as SNPs or AFLPs) correlate with an observed trait. This is often an early step in identifying and sequencing the actual genes that cause the trait variation.Quantitative traits are phenotypes (characteristics) that vary in degree and can be attributed to polygenic effects, i.e., the product of two or more genes, and their environment.
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