PPT-Quantitative genetics The phenotypic traits of the different organisms may be

quali tative traits are the classical Mendelian traits of kinds such as form eg round or wrinkled seeds of pea structure eg horned or hornless condition in cattles pigments egblack. Chapter QUANTITATIVE GENETICS: MEASURING HERITABILITYIntroductiondemonstrations that traits which are normally distributed can arise from the action ofmultiple genes, each with relatively small effect We… . 1. st. : Classify the organisms in genres?. 2. nd. : . Discover . Evolutionary Relationships?. Evolution: Classification. Phylogeny. Cladistics. Dichotomous . Keys. Classification. How do scientists classify &identify organisms?. 1.INTRODUCTIONQuantitativegeneticshastypicallybeenconcernedwithtraitsthat,inessence,arepoints,i.e.measuredataspeciclocationortime.Clearly,however,therearetraitswhicharenotonlyrecordedrepeatedlyperind Modified by Georgia Agriculture Education Curriculum Office. June, 2002. Heredity. Passing of traits from parent to offspring. Genes. Gene – segment of a chromosome that contains the heredity traits of an organism. Beyond alleles: quantitative genetics and the evolution of phenotypes. Continuous traits have a complex genetic basis. Polygenic trait:. influenced by many genetic loci. Interaction between alleles (epistasis). We… . 1. st. : Classify the organisms in genres?. 2. nd. : . Discover . Evolutionary Relationships?. Evolution: Classification. Phylogeny. Cladistics. Dichotomous . Keys. Classification. How do scientists classify &identify organisms?. Traits. - Characteristic, quality, or feature that distinguishes an organism. Genetics. /Heredity. - . The passing on of traits from parent to offspring. Acquired Trait. - Trait that is learned or obtained through experience or practice.. -----. Module . 11 . – . Association Genetics. Nicholas Wheeler & David Harry – Oregon State University. What is association genetics?. Association genetics is the process of identifying alleles that are disproportionately represented among individuals with different phenotypes. It is a population-based survey used to identify relationships between genetic markers and phenotypic traits. By: Francesco Bartucci and Adnan Sator. What . are Human Quantitative Traits?. A human . q. uantitative . t. rait is a measureable trait that shows a continuous variation and can have numerical values that can be ordered from highest to lowest.. Big Ideas of this Chapter!!. Inherited genes determine an organism’s traits. . Using scientific methods, . Gregor. Mendel discovered the basic principles of genetics. . It is now known that interactions among alleles, genes, and the . Describe the role and importance of genetics in the animal industry. Recognize & describe the interrelationship between genetics and the environment. Identify common characteristics used to select high quality breeding stock. Genes in populations. Gene and genotype frequencies. Hardy-Weinberg . equilibrium. Linkage . disequilibrium. Descriptive statistics for quantitative traits. Genetic variance. Heritability. Relationships among relatives. UNIT – II . Principles of Animal & Population Genetics . Lecture – . 3 . Quantitative Genetics: Components of Variance . Dr K G Mandal. Department of Animal Genetics & Breeding . Bihar Veterinary College, Patna . The study of heredity or how traits are passed from parents to offspring. Genetic Material. Chromosome. Rod shaped structure in the nucleus of a cell consisting of genes. Occur in pairs except in the reproductive cells .