• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Towards efficient breeding
Towards efficient breeding

... 1. Budget is the present-day allocation. ...
Here - Semantic Scholar
Here - Semantic Scholar

... In modern terms, commutative duplication can be realized using tensor products. For any commutative algebra A, tensor it with itself (in the sense of vector spaces) to form A ⊗ A. Then, commutative duplication can be achieved via the quotient (A ⊗ A)/I, where I is the subspace generated by elements ...
Interactions Between Genes Controlling Pathogenicity in the Flax
Interactions Between Genes Controlling Pathogenicity in the Flax

... was not used in any other crosses. The dikaryotic aeciospores arising from successful crosses were inoculated onto Hoshangabad plants to obtain sufficient urediospores to test on the full set of differential cultivars: the urediospores derived from one pustule of aeciospores constituted a single rus ...
1 The Empirical Non-Equivalence of Genic and Genotypic Models of
1 The Empirical Non-Equivalence of Genic and Genotypic Models of

... Abstract. Genic selectionists (Williams 1966 and Dawkins 1976) defend the view that genes are the (unique) units of selection and that all evolutionary events can be adequately represented at the genic level. Pluralistic genic selectionists (Sterelny and Kitcher 1988, Waters 1991, Dawkins 1982) def ...
Genetics of Clubroot Resistance inBrassicaSpecies | SpringerLink
Genetics of Clubroot Resistance inBrassicaSpecies | SpringerLink

... minimizing crop losses, especially when they are incorporated into systems of integrated control (see Diederichsen and others, this issue; Faggian and Strelkov, this issue; Donald and Porter, this issue). Sources of resistance have been identified and the genetic basis for resistance were studied in ...
View - Rai University
View - Rai University

... hybrids in cereals and various crops were developed by hybridization and exploitation of heterosis. The overwhelming importance of heterosis attracted many scientists to study the underlying genetic causes of this unique phenomenon. In recent years, there have been new developments in agriculture. O ...


... secondarily ascertained nuclear families were sought for study. Bilineal branches where both parents were defined as alcohol dependent by either interview or family history report were not included. Families in which recruitment of all eligible members was completed and blood samples were obtained w ...
SARS Outbreaks in Ontario, Hong Kong and Singapore
SARS Outbreaks in Ontario, Hong Kong and Singapore

... How is a gene segregating in a population (a group of individuals)? (3) Quantitative genetics How is gene segregation related with the phenotype of a character? (4) Molecular genetics What is the molecular basis of gene segregation and ...
cross-sectional and longitudinal analyses
cross-sectional and longitudinal analyses

... Videogame play (VGP) has been associated with numerous preferred and non-preferred effects. However, the effects of VGP on the development of microstructural properties in children, particularly those associated with negative psychological consequences of VGP, have not been identified to date. The pu ...
univERsity oF copEnhAGEn
univERsity oF copEnhAGEn

... Phenotypic variation between individuals of a species is often under quantitative genetic control. Genomic analysis of gene expression polymorphisms between individuals is rapidly gaining popularity as a way to query the underlying mechanistic causes of variation between individuals. However, there ...
Pedigree Analysis Introduction Developing Conclusions About
Pedigree Analysis Introduction Developing Conclusions About

... Do you have the same hair color or eye color as your mother? Do people say you look just like your grandfather when he was your age? When we look at members of a family it is easy to see that some physical characteristics or traits are shared, but what are the rules that govern the inheritance of th ...
Genetic Polymorphisms of Cytochromes P450: CYP2C9, CYP2C19
Genetic Polymorphisms of Cytochromes P450: CYP2C9, CYP2C19

... be performed to allow a 99% sensitive prediction of poor or ultrarapid metabolizers in the clinical routine. The polymorphism in CYP2C family is important because these enzymes act on some very important drugs: anticonvulsants, antidiabetics, anticoagulants, antidepressants, antimalarial, nonsteroid ...
Running Header: WHAT ARE THE GENETICS BEHIND DYSLEXIA
Running Header: WHAT ARE THE GENETICS BEHIND DYSLEXIA

... the areas that lack some research are that of comorbidity and gender association. A lot is being done to look at what is specific genes are causing dyslexia, but more research needs to revolve around how it is affecting a person. In most cases a person is not just dyslexic, there lie other factors t ...
Correction to “Frequency of Undetected CYP2D6
Correction to “Frequency of Undetected CYP2D6

... Frequency of hybrid genes per sample type The frequency of hybrids genes in CYP2D6*4 and CYP2D6*10 samples is reported for both heterozygous or homozygous and heterozygous alone. We did not determine whether one or both chromosomes contained a hybrid tandem in homozygous samples. For this reason, to ...
Brown_washington_0250E_16561
Brown_washington_0250E_16561

... number of unique ancestry blocks in a specific sample of local ancestry calls, as the number of unique ancestry blocks will be less than the total number of genetic markers where local ancestry was inferred from a SNP chip panel. This approach is simple in that it does not make any modeling assumpti ...
Online resources for genetic variation study-Part One
Online resources for genetic variation study-Part One

... Genotype: Each person has two copies of all chromosomes except the sex chromosomes. The set of alleles at a given locus forms the genotype. Genotyping: the process of identifying what genotype a person has for any given locus (loci). Whole-genome genotyping of all SNPs in a human genome? (11.8 mi ...
Identification of causal genes for complex traits
Identification of causal genes for complex traits

... Motivation: Although genome-wide association studies (GWAS) have identified thousands of variants associated with common diseases and complex traits, only a handful of these variants are validated to be causal. We consider ‘causal variants’ as variants which are responsible for the association signa ...
Using natural variation to unravel the dynamic regulation of plant
Using natural variation to unravel the dynamic regulation of plant

... Farmers selected the seeds of the best performing plants to sow them in the next growing season. As a consequence of this domestication process plant performance was increased, but genetic variation was reduced. Later in history, farmers started to breed for new varieties by crossing to combine posi ...
Pedigree Analysis
Pedigree Analysis

... generations are therefore written underneath the parental generations and the oldest individuals are found at the top of the pedigree. If the purpose of a pedigree is to analyze the pattern of inheritance of a particular trait, it is customary to shade in the symbol of all individuals that possess t ...
Natural variation in Arabidopsis thaliana: from
Natural variation in Arabidopsis thaliana: from

... 2006; Ehrenreich et al., 2009), but this has become largely obsolete today. While the principles of GWAS are easy to understand, important limitations arise from population structure, that is, not all investigated individuals being equally distantly related to each other. Powerful methods have been ...
The population genetics of mutations: good, bad and indifferent
The population genetics of mutations: good, bad and indifferent

... for spontaneous mutations of a given genome. Thus, it could be argued that the DME is highly dependent on the genotype; but all organisms are complex functional networks and have ‘learned’ to live with a flux of new mutations, such that powerful normalizing forces might cause the DMEs we can observe ...
CRISPR-directed mitotic recombination enables genetic
CRISPR-directed mitotic recombination enables genetic

... influence the trait to specific regions of the genome. The localization relies on meiotic recombination events that break up linkage between markers on a chromosome. Therefore, the spatial resolution of genetic mapping is limited by the recombination rate. In practice, the recombination rate in m ...
The Experiments of Gregor Mendel
The Experiments of Gregor Mendel

... The Role of Fertilization Mendel’s garden had several stocks of pea plants that were “true-breeding,” meaning that they were self-pollinating, and would produce offspring with identical traits to themselves. A trait is a specific characteristic of an individual, such as seed color or plant height, a ...
7. Mendelian Genetics
7. Mendelian Genetics

... In 1853 and 1854, Mendal published two papers on crop damage by insects. However, he is best known for his later studies of the pea plant Pisum sativum. Mendel was inspired by both his professors at university and his colleagues at the monastery to study variation in plants. He had carried out artif ...
Population Genetics - National Open University of Nigeria
Population Genetics - National Open University of Nigeria

... The basic laws of heredity are the law of segregation and the law of independent assortment as formulated by Mendel in his experiment on garden peas. However, it was later realised that there are questions about the population that cannot be addressed by mere application of Mendelian laws of heredit ...
< 1 ... 5 6 7 8 9 10 11 12 13 ... 421 >

Heritability of IQ

Research on heritability of IQ infers from the similarity of IQ in closely related persons the proportion of variance of IQ among individuals in a study population that is associated with genetic variation within that population. This provides a maximum estimate of genetic versus environmental influence for phenotypic variation in IQ in that population. ""Heritability"", in this sense, ""refers to the genetic contribution to variance within a population and in a specific environment"". There has been significant controversy in the academic community about the heritability of IQ since research on the issue began in the late nineteenth century. Intelligence in the normal range is a polygenic trait. However, certain single gene genetic disorders can severely affect intelligence, with phenylketonuria as an example.Estimates in the academic research of the heritability of IQ have varied from below 0.5 to a high of 0.8 (where 1.0 indicates that monozygotic twins have no variance in IQ and 0 indicates that their IQs are completely uncorrelated). Some studies have found that heritability is lower in families of low socioeconomic status. IQ heritability increases during early childhood, but it is unclear whether it stabilizes thereafter. A 1996 statement by the American Psychological Association gave about 0.45 for children and about .75 during and after adolescence. A 2004 meta-analysis of reports in Current Directions in Psychological Science gave an overall estimate of around 0.85 for 18-year-olds and older. The general figure for heritability of IQ is about 0.5 across multiple studies in varying populations. Recent studies suggest that family environment (i.e., upbringing) has negligible long-lasting effects upon adult IQ.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report