recommended breeding policy for the maine
... Dominant White (W) Also known as the White Masking Gene. This gene when heterozygous, (W/w) will present as a fully white cat. However, the gene masks both colour and pattern, and a white cat can produce kittens that show the underlying colour and pattern, as well as fully white kittens. Orange (O) ...
... Dominant White (W) Also known as the White Masking Gene. This gene when heterozygous, (W/w) will present as a fully white cat. However, the gene masks both colour and pattern, and a white cat can produce kittens that show the underlying colour and pattern, as well as fully white kittens. Orange (O) ...
On the explanatory roles of natural selection
... so explain why particular individuals have them (1995b). Replies to the “positive” position – that selection is part of the explanation for why individuals have the traits they do – usually draw upon the distinction between variational and developmental explanations. Due to certain explanatory or me ...
... so explain why particular individuals have them (1995b). Replies to the “positive” position – that selection is part of the explanation for why individuals have the traits they do – usually draw upon the distinction between variational and developmental explanations. Due to certain explanatory or me ...
Quantitative inheritance
... To illustrate discontinuous variation caused by genetic segregation as it is translated into continuous variation of metric traits 1. Consider any locus, each with two alleles ~ i.e. two forms of a gene, with equal gene frequency 2. There is no dominance of one allele at each locus 3. Then the domin ...
... To illustrate discontinuous variation caused by genetic segregation as it is translated into continuous variation of metric traits 1. Consider any locus, each with two alleles ~ i.e. two forms of a gene, with equal gene frequency 2. There is no dominance of one allele at each locus 3. Then the domin ...
goodfield tennessee deep water lot
... Agriculture Canada team did not have the means to make the most of their discoveries but they certainly should not be forgotten. In the period 1970–1985, once CMS and restoration were available (freely with no patents), commercial breeding started on a large scale in all the countries where sunflowe ...
... Agriculture Canada team did not have the means to make the most of their discoveries but they certainly should not be forgotten. In the period 1970–1985, once CMS and restoration were available (freely with no patents), commercial breeding started on a large scale in all the countries where sunflowe ...
Acriflavine -resistant Mutants of Aspergillus nidulans
... of the range of mutant types to include those able to grow in the presence of certain substances which are inhibitory to the growth of the wild type. The aim in obtaining such resistant strains was that they should be used not only as a study in themselves, but also to provide an extra tool in the s ...
... of the range of mutant types to include those able to grow in the presence of certain substances which are inhibitory to the growth of the wild type. The aim in obtaining such resistant strains was that they should be used not only as a study in themselves, but also to provide an extra tool in the s ...
Selection in backcross programmes
... and yield) between maize elite lines with markerassisted backcrossing. They showed that the use of markers to improve background selection is efficient, even with few markers, especially on non-carrier chromosomes. Foreground selection on markers to control the three target regions without the help ...
... and yield) between maize elite lines with markerassisted backcrossing. They showed that the use of markers to improve background selection is efficient, even with few markers, especially on non-carrier chromosomes. Foreground selection on markers to control the three target regions without the help ...
Analysis of Clines with Variable Selection and Variable Migration
... ments of gene flow. The former corresponds to the measure of a life-history trait, while the latter reveals the history of migration as recorded in the genetic structure of population (Slatkin 1985). As a consequence, migration is often envisioned in a dichotomous way, being either a process driving ...
... ments of gene flow. The former corresponds to the measure of a life-history trait, while the latter reveals the history of migration as recorded in the genetic structure of population (Slatkin 1985). As a consequence, migration is often envisioned in a dichotomous way, being either a process driving ...
ppt
... can define the physiological relationships between temp and metabolism and activity in the lab, but do they choose areas that maintain their temp in this range? Go look in an environment with variable temps, and see if choice meets the adaptive expectation. ...
... can define the physiological relationships between temp and metabolism and activity in the lab, but do they choose areas that maintain their temp in this range? Go look in an environment with variable temps, and see if choice meets the adaptive expectation. ...
A dynamic deterministic model to optimize a multiple
... The deterministic model described above allows global optimization of the selection scheme to maximize the frequency of the desired genotype for a monogenic trait, while minimizing the loss of genetic progress on a polygenic trait. These objectives may be achieved by taking into account the whole po ...
... The deterministic model described above allows global optimization of the selection scheme to maximize the frequency of the desired genotype for a monogenic trait, while minimizing the loss of genetic progress on a polygenic trait. These objectives may be achieved by taking into account the whole po ...
VI. Levels of Selection
... Selection can occur wherever there is differential reproduction among variable entities. Usually identified by outcomes contradictory to predictions at the individual ...
... Selection can occur wherever there is differential reproduction among variable entities. Usually identified by outcomes contradictory to predictions at the individual ...
The quantitative genetic theory of parental effects
... suites of traits that affect traits expressed in offspring and/or are affected by traits expressed in parents. In the first section I give a detailed exposition of the Kirkpatrick–Lande model (hence forth the K–L model; Kirkpatrick and Lande 1989, 1992; Lande and Kirkpatrick 1990), a model that gener ...
... suites of traits that affect traits expressed in offspring and/or are affected by traits expressed in parents. In the first section I give a detailed exposition of the Kirkpatrick–Lande model (hence forth the K–L model; Kirkpatrick and Lande 1989, 1992; Lande and Kirkpatrick 1990), a model that gener ...
The Story of Bean Breeding - Dry Bean Breeding and Genetics
... usually falls in the 10-15% heritable range, plant height ranges from 35-40%, seed size ranges from 65-75% heritability. So the gain from selection will always be lower for yield than for seed size as the heritability (genetic portion that breeder selects) is lower. Therefore progress for yield is r ...
... usually falls in the 10-15% heritable range, plant height ranges from 35-40%, seed size ranges from 65-75% heritability. So the gain from selection will always be lower for yield than for seed size as the heritability (genetic portion that breeder selects) is lower. Therefore progress for yield is r ...
L18Selection
... acting together with other factors of Microevolution. Suppose that there are n different genotypes ai: a1, ... an. Their frequencies are [ai], and the total population size is N. Thus, there are N[ai] individuals of genotype ai. Fitness, the expected number of offspring, of an ai individual is wi. F ...
... acting together with other factors of Microevolution. Suppose that there are n different genotypes ai: a1, ... an. Their frequencies are [ai], and the total population size is N. Thus, there are N[ai] individuals of genotype ai. Fitness, the expected number of offspring, of an ai individual is wi. F ...
Purchase Agreement
... clean cattery, (2) no outdoor exposure, (3) premium cat foods and (4) regular veterinarian health checks, including a worming and shot schedule. The kitten is a healthy kitten free of internal/external parasites and all infectious disease or congenital defects. Purchaser must have the kitten checked ...
... clean cattery, (2) no outdoor exposure, (3) premium cat foods and (4) regular veterinarian health checks, including a worming and shot schedule. The kitten is a healthy kitten free of internal/external parasites and all infectious disease or congenital defects. Purchaser must have the kitten checked ...
Exemplar for Internal Achievement Standard Biology Level 3
... recessive gene, there would be a chance of the kernel being homozygous recessive. This would mean that the particular phenotype expressed in the original corn plant would not be expressed in the new plant. Selective breeding has become easier with time, as people found ways to figure out an organism ...
... recessive gene, there would be a chance of the kernel being homozygous recessive. This would mean that the particular phenotype expressed in the original corn plant would not be expressed in the new plant. Selective breeding has become easier with time, as people found ways to figure out an organism ...
9. Assistance From The Tonkinese Breed
... and orange/yellow, which is arranged in bands (ticking) in the individual coat hairs. This gene is sometimes mistakenly referred to as the tabby gene because the ticking allows the tabby pattern to be seen. There are two variations: 1. Agouti (A-) - Dominant – the colour along each hair is arranged ...
... and orange/yellow, which is arranged in bands (ticking) in the individual coat hairs. This gene is sometimes mistakenly referred to as the tabby gene because the ticking allows the tabby pattern to be seen. There are two variations: 1. Agouti (A-) - Dominant – the colour along each hair is arranged ...
The Inheritance of Penicillin Titre in Crosses between
... be broken up and the individual genes recombined additively with those selected in other lines to produce further increases in titre. Similar crosses between lines selected for linear growth rate have been .described by Simchen (1966) for monokaryons of SchizophylZum commune and by Papa (1970) for N ...
... be broken up and the individual genes recombined additively with those selected in other lines to produce further increases in titre. Similar crosses between lines selected for linear growth rate have been .described by Simchen (1966) for monokaryons of SchizophylZum commune and by Papa (1970) for N ...
CRCT prep #7 update
... escapes from a cat. The mouse later reproduces. Which explanation best describes why the mouse’s offspring have long tails? A Long tails are a dominant trait. B Short tails do not appear in the first generation or the second generation. C Cutting the tail of the mouse changed its genes. D Cutting th ...
... escapes from a cat. The mouse later reproduces. Which explanation best describes why the mouse’s offspring have long tails? A Long tails are a dominant trait. B Short tails do not appear in the first generation or the second generation. C Cutting the tail of the mouse changed its genes. D Cutting th ...
No Slide Title
... escapes from a cat. The mouse later reproduces. Which explanation best describes why the mouse’s offspring have long tails? A Long tails are a dominant trait. B Short tails do not appear in the first generation or the second generation. C Cutting the tail of the mouse changed its genes. D Cutting th ...
... escapes from a cat. The mouse later reproduces. Which explanation best describes why the mouse’s offspring have long tails? A Long tails are a dominant trait. B Short tails do not appear in the first generation or the second generation. C Cutting the tail of the mouse changed its genes. D Cutting th ...
Applet for calculating heritability for threshold traits
... Chapter 12. Estimating- and biotechnology and disease resistance........................................................ 88 12.1 Technology for estimation of breeding value ............................................................................. 88 12.2 The significance of artificial inseminati ...
... Chapter 12. Estimating- and biotechnology and disease resistance........................................................ 88 12.1 Technology for estimation of breeding value ............................................................................. 88 12.2 The significance of artificial inseminati ...
BI 2060 V09 English Chapter 13 Effects from Aquaculture
... The introgression situation in Atlantic salmon in Norway A rule of thumb in quantitative genetics says that the offspring will perform approx. at the average of the parents phenotypic value for traits with a reasonable degree of heritability. Hence, if escaped farmed salmon interbreed with wild rela ...
... The introgression situation in Atlantic salmon in Norway A rule of thumb in quantitative genetics says that the offspring will perform approx. at the average of the parents phenotypic value for traits with a reasonable degree of heritability. Hence, if escaped farmed salmon interbreed with wild rela ...
Cross Breeding Suris and Huacayas
... 4) Hybrid vigor Hybrid vigor is a well-documented genetic phenomenon that results when out-crossing completely unrelated animals or plants. Hybrids are generally quite robust and require less care. The Corriedale sheep was developed in New Zealand by crossing two different breeds of sheep. It is a ...
... 4) Hybrid vigor Hybrid vigor is a well-documented genetic phenomenon that results when out-crossing completely unrelated animals or plants. Hybrids are generally quite robust and require less care. The Corriedale sheep was developed in New Zealand by crossing two different breeds of sheep. It is a ...
30 years of breeding foreign white cats
... The blue-eyed whites that result of such a mating might well be Oriental shorthairs under their white coats and have white-blue eyes, instead of being Foreign Whites with double Siamese underlying pattern. Sometimes the difference is very difficult to see, but most Oriental white’s have a coloured p ...
... The blue-eyed whites that result of such a mating might well be Oriental shorthairs under their white coats and have white-blue eyes, instead of being Foreign Whites with double Siamese underlying pattern. Sometimes the difference is very difficult to see, but most Oriental white’s have a coloured p ...
Slide 1
... "It is interesting to contemplate an entangled bank, clothed with many plants of many kinds, with birds singing on the bushes, with various insects flitting about, and with worms crawling through the damp earth, and to reflect that these elaborately constructed forms, so different from each other, a ...
... "It is interesting to contemplate an entangled bank, clothed with many plants of many kinds, with birds singing on the bushes, with various insects flitting about, and with worms crawling through the damp earth, and to reflect that these elaborately constructed forms, so different from each other, a ...
Population genetics by Knud Christensen
... 12.3 Transgene and transgenic animals .............................................................................................................. 93 12.4 Utilization of DNA markers ................................................................................................................... ...
... 12.3 Transgene and transgenic animals .............................................................................................................. 93 12.4 Utilization of DNA markers ................................................................................................................... ...
Selective breeding
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.