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Zoology - University of Kashmir
... 9. Viral and bacterial diseases in birds and mammals. Health care of Wild animals and birds in captivity. Predation - Problems and Principles. 10. Ecological zones of India with special reference to distribution of wild fauna. Important National Parks of India with concept of their creation. Methods ...
... 9. Viral and bacterial diseases in birds and mammals. Health care of Wild animals and birds in captivity. Predation - Problems and Principles. 10. Ecological zones of India with special reference to distribution of wild fauna. Important National Parks of India with concept of their creation. Methods ...
Test 1-2004
... constitutes “good quality”. Indeed for many process foods, processors want raw products to have no taste as it is easier for them to produce a uniform product by adding flavor, or indeed color. Finally it is often difficult to obtain what constitutes good quality from industry as they are very covet ...
... constitutes “good quality”. Indeed for many process foods, processors want raw products to have no taste as it is easier for them to produce a uniform product by adding flavor, or indeed color. Finally it is often difficult to obtain what constitutes good quality from industry as they are very covet ...
Text S2 Selection on GWAS SNPs and Traits As GWAS SNPs are
... underlying genetic variation [5]. The same appears to be true for GWAS (quantitative) traits in humans, given the large number of trait-associated loci that have been discovered. Two primary mechanisms have been proposed which might maintain genetic variation at quantitative trait loci (QTLs) under ...
... underlying genetic variation [5]. The same appears to be true for GWAS (quantitative) traits in humans, given the large number of trait-associated loci that have been discovered. Two primary mechanisms have been proposed which might maintain genetic variation at quantitative trait loci (QTLs) under ...
Are your Earlobes attached or detached?
... A heritability factor of 0.0 means that a trait is influenced very little by genetic information A heritability factor of 1.0 means that a trait is influenced very little by the environment. ...
... A heritability factor of 0.0 means that a trait is influenced very little by genetic information A heritability factor of 1.0 means that a trait is influenced very little by the environment. ...
Site-Directed Nucleases - European Plant Science Organisation
... lines. The reason is that all the gene varieties – called alleles – and their corresponding traits get shuffled around randomly in the progeny seeds if you multiply a hybrid plant by itself. You will then lose the particular allele combination that made the hybrid plant successful. Reverse breeding ...
... lines. The reason is that all the gene varieties – called alleles – and their corresponding traits get shuffled around randomly in the progeny seeds if you multiply a hybrid plant by itself. You will then lose the particular allele combination that made the hybrid plant successful. Reverse breeding ...
Artificial Selection Algorithm - International Journal of Computer
... differential reproduction of organisms with certain traits is attributed to improved survival or reproductive ability. As opposed to artificial selection, in which humans favor specific traits, in natural selection the environment acts as a sieve ...
... differential reproduction of organisms with certain traits is attributed to improved survival or reproductive ability. As opposed to artificial selection, in which humans favor specific traits, in natural selection the environment acts as a sieve ...
Glossary of technical terms in animal genetics for course WAP 214
... Generation length (L) -- The amount of time required to replace one generation with the next. In some populations generations occur at discrete intervals of time, e.g. the annual weeds in my garden go through one generation each year. In most farm animal populations the generations overlap so that p ...
... Generation length (L) -- The amount of time required to replace one generation with the next. In some populations generations occur at discrete intervals of time, e.g. the annual weeds in my garden go through one generation each year. In most farm animal populations the generations overlap so that p ...
Outline of lectures 9-10
... 11. If genetic variation has been lost, we expect that reverse selection of the selected line will not get a response. 12. An alternative possibility is that genetic variation is still present, but that natural selection is opposing artificial selection (that the individuals you judge best have lowe ...
... 11. If genetic variation has been lost, we expect that reverse selection of the selected line will not get a response. 12. An alternative possibility is that genetic variation is still present, but that natural selection is opposing artificial selection (that the individuals you judge best have lowe ...
Remember that
... The dominance variation is equal to VD= Here are some things to note: 1. the dominance deviation, d, can contribute to VA if q>p. 2. The additive genetic variation can be derived in terms of gene frequencies (p and q), the additive effects of alleles (a), and the dominance deviation (d). Thus there ...
... The dominance variation is equal to VD= Here are some things to note: 1. the dominance deviation, d, can contribute to VA if q>p. 2. The additive genetic variation can be derived in terms of gene frequencies (p and q), the additive effects of alleles (a), and the dominance deviation (d). Thus there ...
Is trophy hunting draining the gene pool?
... of a certain size used extensively may apply an intense selection on any fish not small enough to slip through, but this is obviously unrelated to individual harvest that occurs in typical big game hunting situations. No article on the perils of trophy hunting is complete without reporting about the ...
... of a certain size used extensively may apply an intense selection on any fish not small enough to slip through, but this is obviously unrelated to individual harvest that occurs in typical big game hunting situations. No article on the perils of trophy hunting is complete without reporting about the ...
7th Spring Final Exam Review 2016
... 10. Name 3 differences between plant and animal cells including the shape. ...
... 10. Name 3 differences between plant and animal cells including the shape. ...
What is Inheritance?
... Every cell in an individual contains a full set of chromosomes in the nucleus (except sex cells) The number of chromosomes varies between species Some species can have as few as 2 chromosomes and others as many as 100! Humans have 46 chromosomes ...
... Every cell in an individual contains a full set of chromosomes in the nucleus (except sex cells) The number of chromosomes varies between species Some species can have as few as 2 chromosomes and others as many as 100! Humans have 46 chromosomes ...
ppt - Department of Plant Sciences
... outcrossing species. The Syn-1 generation is produced by random mating of reproducible components (inbred lines or clones). If it is found to be desirable as a new plant variety, it can be reproduced and sold by repeating the identical crossing block. This type of breeding method is most practical i ...
... outcrossing species. The Syn-1 generation is produced by random mating of reproducible components (inbred lines or clones). If it is found to be desirable as a new plant variety, it can be reproduced and sold by repeating the identical crossing block. This type of breeding method is most practical i ...
ppt - Department of Plant Sciences
... Objective 3: know the basic principles of plant breeding Importance of genetic variation and selection ...
... Objective 3: know the basic principles of plant breeding Importance of genetic variation and selection ...
Mendel and His Peas
... The passing of traits from parent to offspring, and it is very complicated Different people have different traits, such as eye color, hair color, and ear lobes that do not attach directly to their head Where do people get these different traits? Many traits are inherited from parents and passed from ...
... The passing of traits from parent to offspring, and it is very complicated Different people have different traits, such as eye color, hair color, and ear lobes that do not attach directly to their head Where do people get these different traits? Many traits are inherited from parents and passed from ...
Genetic Diversity
... • Some intuitive feeling that diversity could be good to have, • To demonstrate that breeders care for sustainability, breeding is not mining, • A sense of respect, • Genetic diversity is the basis for the professions forest geneticist and tree ...
... • Some intuitive feeling that diversity could be good to have, • To demonstrate that breeders care for sustainability, breeding is not mining, • A sense of respect, • Genetic diversity is the basis for the professions forest geneticist and tree ...
Selection on Developmental Genes
... d. What do “these “refer to? e. Tameness could be defined as _________________________________________ Human breeding of tame foxes 6 In the 1950s, Dmitry Belyaev of the Soviet Union's Institute of Cytology and Genetics began testing a hypothesis about selection for a behavioral trait - tamability. ...
... d. What do “these “refer to? e. Tameness could be defined as _________________________________________ Human breeding of tame foxes 6 In the 1950s, Dmitry Belyaev of the Soviet Union's Institute of Cytology and Genetics began testing a hypothesis about selection for a behavioral trait - tamability. ...
Chapter 26: Quantitative Genetics
... influenced by environmental factors. Because they can be described numerically, many of the complex traits are also termed quantitative traits. As shown in Table 26.1, quantitative traits can be categorized as anatomical, physiological, or behavioral. Moreover, many human diseases exhibit characteri ...
... influenced by environmental factors. Because they can be described numerically, many of the complex traits are also termed quantitative traits. As shown in Table 26.1, quantitative traits can be categorized as anatomical, physiological, or behavioral. Moreover, many human diseases exhibit characteri ...
No Slide Title
... Primary targets to date have been forage targets Reduced lignin content - may improve mowing but would not improve wear tolerance Successful in tissue culture and transformation Maybe useful in brown patch resistance if correct gene could be found ...
... Primary targets to date have been forage targets Reduced lignin content - may improve mowing but would not improve wear tolerance Successful in tissue culture and transformation Maybe useful in brown patch resistance if correct gene could be found ...
Natural selection
... TYPES NATURAL SELECTION CONT… • Disruptive/Diversifying selection: occurs when natural selection favors both extremes of continuous variation (increases genetic variance when natural selection selects for two or more extreme phenotypes that each have specific advantages). Over time, the two extreme ...
... TYPES NATURAL SELECTION CONT… • Disruptive/Diversifying selection: occurs when natural selection favors both extremes of continuous variation (increases genetic variance when natural selection selects for two or more extreme phenotypes that each have specific advantages). Over time, the two extreme ...
Monday - Houston ISD
... SCI.7.11C Identify some changes in genetic traits that have occurred over several generations through natural selection and selective breeding such as the Galapagos Medium Ground Finch (Geospiza fortis) or domestic animals. Page 380 (Selective Breeding) Student identifies an example of either natura ...
... SCI.7.11C Identify some changes in genetic traits that have occurred over several generations through natural selection and selective breeding such as the Galapagos Medium Ground Finch (Geospiza fortis) or domestic animals. Page 380 (Selective Breeding) Student identifies an example of either natura ...
The selected traits and their economic importance
... the young bulls are tested to become AI sires. They are reared in homogenous conditions from 50 days till 12 months of age. The average daily weigh gain is calculated based on the monthly weighing: each animal is weighed 11 times. Muscularity is rated through the visual appraise by 3 breed experts u ...
... the young bulls are tested to become AI sires. They are reared in homogenous conditions from 50 days till 12 months of age. The average daily weigh gain is calculated based on the monthly weighing: each animal is weighed 11 times. Muscularity is rated through the visual appraise by 3 breed experts u ...
univERsity oF copEnhAGEn
... insight in population genetics, to predict and eventually utilize these changes to the benefit of the tree grower and the subsequent utilization. ...
... insight in population genetics, to predict and eventually utilize these changes to the benefit of the tree grower and the subsequent utilization. ...
Selective breeding
![](https://commons.wikimedia.org/wiki/Special:FilePath/Sectio_caesarea.jpg?width=300)
Selective breeding (also called artificial selection) is the process by which humans use animal breeding and plant breeding to selectively develop particular phenotypic traits (characteristics) by choosing which typically animal or plant males and females will sexually reproduce and have offspring together. Domesticated animals are known as breeds, normally bred by a professional breeder, while plants are known as varieties, cultigens, or cultivars in plants. Two purebred animals of different breeds produce a crossbreed, and crossbred plants are called hybrids.There are two approaches or types of artificial selection, or selective breeding. First is the traditional ""breeder’s approach"" in which the breeder or experimenter applies ""a known amount of selection to a single phenotypic trait"" by examining the chosen trait and choosing to breed only those that exhibit higher or ""extreme values"" of that trait. The second is called ""controlled natural selection,"" which is essentially natural selection in a controlled environment. In this, the breeder does not choose which individuals being tested ""survive or reproduce,"" as he or she could in the traditional approach. There are also ""selection experiments,"" which is a third approach and these are conducted in order to determine the ""strength of natural selection in the wild."" However, this is more often an observational approach as opposed to an experimental approach. In animal breeding, techniques such as inbreeding, linebreeding, and outcrossing are utilized. In plant breeding, similar methods are used. Charles Darwin discussed how selective breeding had been successful in producing change over time in his book, On the Origin of Species. The first chapter of the book discusses selective breeding and domestication of such animals as pigeons, cats, cattle, and dogs. Selective breeding was used by Darwin as a springboard to introduce the theory of natural selection, and to support it.The deliberate exploitation of selective breeding to produce desired results has become very common in agriculture and experimental biology.Selective breeding can be unintentional, e.g., resulting from the process of human cultivation; and it may also produce unintended – desirable or undesirable – results. For example, in some grains, an increase in seed size may have resulted from certain ploughing practices rather than from the intentional selection of larger seeds. Most likely, there has been an interdependence between natural and artificial factors that have resulted in plant domestication.