Tetrasomic inheritance in cultivated potato and implications in
... the desirable traits of both parents in the ensuing populations (Mackay, 2005). Mid-parental values may provide good indicators of the likely average value of their progeny and thus serve as a useful means of cross prediction in some instances(Brown and Caligari, 1989).Some breeders choose to cross ...
... the desirable traits of both parents in the ensuing populations (Mackay, 2005). Mid-parental values may provide good indicators of the likely average value of their progeny and thus serve as a useful means of cross prediction in some instances(Brown and Caligari, 1989).Some breeders choose to cross ...
Heredity and Development: Second Edition
... numbers of offspring. In addition, the crosses themselves added considerably to genetic theory in that they were the first well-analyzed cases of sex-linked inheritance. The fact that the genetic results exactly paralleled the behavior of the B chromosome was strong evidence that the gene responsibl ...
... numbers of offspring. In addition, the crosses themselves added considerably to genetic theory in that they were the first well-analyzed cases of sex-linked inheritance. The fact that the genetic results exactly paralleled the behavior of the B chromosome was strong evidence that the gene responsibl ...
What Is a Population?
... Action of Natural Selection on Phenotypes How Selection Acts • Only characteristics that are expressed can be targets of natural selection. Therefore, selection cannot operate against rare recessive alleles, even if they are unfavorable. • Only when the allele becomes common enough that heterozygous ...
... Action of Natural Selection on Phenotypes How Selection Acts • Only characteristics that are expressed can be targets of natural selection. Therefore, selection cannot operate against rare recessive alleles, even if they are unfavorable. • Only when the allele becomes common enough that heterozygous ...
temperature effects, and localization of a mobile genetic element Dm
... the time of temperature treatment during the sensitive periods could be explained by non-synchronisation of individual development. It is necessary to discuss the possible role of selection in the observed temperature effects. The control line riC is heterogeneous for modifier genes. It seems possib ...
... the time of temperature treatment during the sensitive periods could be explained by non-synchronisation of individual development. It is necessary to discuss the possible role of selection in the observed temperature effects. The control line riC is heterogeneous for modifier genes. It seems possib ...
Navigating the HapMap - Oxford Academic
... a difference in frequency between cases and controls, and hence an association will be seen with the trait in question. How near these polymorphisms need to be to the disease allele on average is still somewhat open to debate [4**], but is generally dependent on the population history of the sample, ...
... a difference in frequency between cases and controls, and hence an association will be seen with the trait in question. How near these polymorphisms need to be to the disease allele on average is still somewhat open to debate [4**], but is generally dependent on the population history of the sample, ...
vegf paper 23.03.16.... - Wolverhampton Intellectual Repository and
... and extent of collateral vessel formation between subjects (9, 13, 36). Some of these differences may be explained by anatomic variation (e.g. dominance of the right or left coronary tree) or possibly by inter-individual differences in the many processes involved in neovascularisation. Along with we ...
... and extent of collateral vessel formation between subjects (9, 13, 36). Some of these differences may be explained by anatomic variation (e.g. dominance of the right or left coronary tree) or possibly by inter-individual differences in the many processes involved in neovascularisation. Along with we ...
Role of Hereditary Factors in Weight Loss and Its
... in mouse models of obesity, non-syndromic human obesity cases due to single-gene mutations, obesityrelated Mendelian disorders, transgenic and knock-out mice models, QTLs from cross-breeding experiments and genome-wide scans, and genes or markers that have been shown to be associated or linked with ...
... in mouse models of obesity, non-syndromic human obesity cases due to single-gene mutations, obesityrelated Mendelian disorders, transgenic and knock-out mice models, QTLs from cross-breeding experiments and genome-wide scans, and genes or markers that have been shown to be associated or linked with ...
1 Frequency-dependent selection and the evolution of assortative
... evolution of reproductive isolation and speciation. The factors promoting sympatric speciation have been of particular interest, both because it is notoriously difficult to prove empirically and because theoretical models have generated conflicting results, depending on the assumptions made. Here, w ...
... evolution of reproductive isolation and speciation. The factors promoting sympatric speciation have been of particular interest, both because it is notoriously difficult to prove empirically and because theoretical models have generated conflicting results, depending on the assumptions made. Here, w ...
Guppies – Quang Anh
... gene frequency of the brightest guppies was the highest, at 0.78, and so, it proves that those are the ones seen as the most attractive by the female guppies. And although the predation, natural force, played a role in the simulation, it was overwhelmed by sexual selection and even though the bright ...
... gene frequency of the brightest guppies was the highest, at 0.78, and so, it proves that those are the ones seen as the most attractive by the female guppies. And although the predation, natural force, played a role in the simulation, it was overwhelmed by sexual selection and even though the bright ...
Self-fertilization in mosses: a comparison of heterozygote
... variation in ferns and mosses (McCauley et al., 1985; Shaw, 1991; Shaw, 2000) and on levels of intragametophytic selfing in ferns (McCauley et al., 1985; Holsinger, 1987; Ritland et al., 1990; Soltis and Soltis, 1992), there is a paucity of data examining how variation in breeding system influences ...
... variation in ferns and mosses (McCauley et al., 1985; Shaw, 1991; Shaw, 2000) and on levels of intragametophytic selfing in ferns (McCauley et al., 1985; Holsinger, 1987; Ritland et al., 1990; Soltis and Soltis, 1992), there is a paucity of data examining how variation in breeding system influences ...
![Spectrum of [beta] thalassemia mutations and HbF levels in the](http://s1.studyres.com/store/data/014164939_1-79827c78cbc8128eaad3fd6fece2f656-300x300.png)
Spectrum of [beta] thalassemia mutations and HbF levels in the
... A comprehensive hematological and molecular analysis of 57  thalassemic heterozygotes, 28 homozygotes, 18 double heterozygotes, 3 compound heterozygotes  thal/ S and one compound heterozygote  thal/Hb Newcastle, in 46 Moroccan families with at least one  thalassemia patient is reported. Six maj ...
... A comprehensive hematological and molecular analysis of 57  thalassemic heterozygotes, 28 homozygotes, 18 double heterozygotes, 3 compound heterozygotes  thal/ S and one compound heterozygote  thal/Hb Newcastle, in 46 Moroccan families with at least one  thalassemia patient is reported. Six maj ...
Familial nonrandom inactivation linked to the X inactivation
... the two X chromosomes is the active one is usually random. Although stochastic events may account for a less than equal distribution of the two cell lineages in the mosaic female (as the result of the limited number of founder cells in specific tissues), excessively skewed X inactivation (495%) is r ...
... the two X chromosomes is the active one is usually random. Although stochastic events may account for a less than equal distribution of the two cell lineages in the mosaic female (as the result of the limited number of founder cells in specific tissues), excessively skewed X inactivation (495%) is r ...
Article
... intense than in normal S. cerevisiae. Many of these intensity differences can be detected by the naked eye ([16] and see Figure 1), but to obtain quantitative measurement of the DNA content of bands, at least four independent preparations of each strain were made, run out independently on separate g ...
... intense than in normal S. cerevisiae. Many of these intensity differences can be detected by the naked eye ([16] and see Figure 1), but to obtain quantitative measurement of the DNA content of bands, at least four independent preparations of each strain were made, run out independently on separate g ...
Chromosomal Abnormalities
... number of chromosomes. 45, XX, t(14q; 21q) would be a female with a Robertsonian translocation, with the derivative chromosome having the long arms of 14 and 21. The origin of the centromere is not indicated. A more detailed symbolism would be 45, XX, t(14; 21) (14qter → cen → 21qter). Alternatively ...
... number of chromosomes. 45, XX, t(14q; 21q) would be a female with a Robertsonian translocation, with the derivative chromosome having the long arms of 14 and 21. The origin of the centromere is not indicated. A more detailed symbolism would be 45, XX, t(14; 21) (14qter → cen → 21qter). Alternatively ...
w SS G
... Central and West Africa than in the US? Frequency of the ‘s’ allele is 0.14 in some parts of Africa, which is very high for a strongly deleterious recessive allele. ...
... Central and West Africa than in the US? Frequency of the ‘s’ allele is 0.14 in some parts of Africa, which is very high for a strongly deleterious recessive allele. ...
Population Pluralism and Natural Selection
... employ the term ‘population’, nor how biologists generally group individual organisms for their varied research projects. It is entirely uncontroversial for biologists to employ conceptions of ‘population’ however they see fit.1 Controversy arises, however, regarding a concept of population construe ...
... employ the term ‘population’, nor how biologists generally group individual organisms for their varied research projects. It is entirely uncontroversial for biologists to employ conceptions of ‘population’ however they see fit.1 Controversy arises, however, regarding a concept of population construe ...
How does chromosome behavior account for Mendel`s Principles ?
... with a white-eyed male fly. Half of the male and half of the female offspring were red-eyed, and half of the male and half of the female offspring were white-eyed. What was the genotype of the female fly? ...
... with a white-eyed male fly. Half of the male and half of the female offspring were red-eyed, and half of the male and half of the female offspring were white-eyed. What was the genotype of the female fly? ...
Genetic Equilibrium: Human Diversity
... • 3. Genetics: A multicellular organism develops from a single zygote, and its phenotype depends on its genotype, which is established at fertilization. • 3a. Students know how to predict the probable outcome of phenotypes in a genetic cross from the genotypes of the parents and mode of inherita ...
... • 3. Genetics: A multicellular organism develops from a single zygote, and its phenotype depends on its genotype, which is established at fertilization. • 3a. Students know how to predict the probable outcome of phenotypes in a genetic cross from the genotypes of the parents and mode of inherita ...
Genetic Polymorphism of Human CYP2E1
... the CYP2E1*2 and CYP2E1*3 alleles, site-directed mutagenesis was used to introduce these mutations into the wild-type CYP2E1 cDNA. The cDNAs were inserted into the pCMV4 expression vector and subsequently expressed in COS-1 cells. For comparison, cells transfected with the vector alone were used as ...
... the CYP2E1*2 and CYP2E1*3 alleles, site-directed mutagenesis was used to introduce these mutations into the wild-type CYP2E1 cDNA. The cDNAs were inserted into the pCMV4 expression vector and subsequently expressed in COS-1 cells. For comparison, cells transfected with the vector alone were used as ...
Selective Crossover in Genetic Algorithms: An Empirical Study
... On initialisation the dominance values are randomly generated, as is the population, but are restricted to be in the range [0,1]. By doing this we are allowing the GA to explore the search space by evolving the dominance values – to determine and promote those genes which are considered fit. ‘Child ...
... On initialisation the dominance values are randomly generated, as is the population, but are restricted to be in the range [0,1]. By doing this we are allowing the GA to explore the search space by evolving the dominance values – to determine and promote those genes which are considered fit. ‘Child ...
hered short rev master..hered 366 .. Page265
... variation in the relative size of the colour rings within an eyespot due to genes influencing the activity of the focal signal: a focus, irrespective of the donor line, always produced an ectopic eyespot typical of the host tissue. In contrast to both size and colour, there is substantially less add ...
... variation in the relative size of the colour rings within an eyespot due to genes influencing the activity of the focal signal: a focus, irrespective of the donor line, always produced an ectopic eyespot typical of the host tissue. In contrast to both size and colour, there is substantially less add ...
The Effects of Selective History and Environmental
... pression of inbreeding depression. In effect, stress often results from a mismatch between selective history and the test environment. Alleles that are strongly selected in the standard environment will be very rare because of past selection, regardless of their effects in the novel environment. In ...
... pression of inbreeding depression. In effect, stress often results from a mismatch between selective history and the test environment. Alleles that are strongly selected in the standard environment will be very rare because of past selection, regardless of their effects in the novel environment. In ...
Polymorphism (biology)
Polymorphism in biology is said to occur when two or more clearly different phenotypes exist in the same population of a species—in other words, the occurrence of more than one form or morph. In order to be classified as such, morphs must occupy the same habitat at the same time and belong to a panmictic population (one with random mating).Polymorphism as described here involves morphs of the phenotype. The term is also used somewhat differently by molecular biologists to describe certain point mutations in the genotype, such as SNPs (see also RFLPs). This usage is not discussed in this article.Polymorphism is common in nature; it is related to biodiversity, genetic variation and adaptation; it usually functions to retain variety of form in a population living in a varied environment. The most common example is sexual dimorphism, which occurs in many organisms. Other examples are mimetic forms of butterflies (see mimicry), and human hemoglobin and blood types.According to the theory of evolution, polymorphism results from evolutionary processes, as does any aspect of a species. It is heritable and is modified by natural selection. In polyphenism, an individual's genetic make-up allows for different morphs, and the switch mechanism that determines which morph is shown is environmental. In genetic polymorphism, the genetic make-up determines the morph. Ants exhibit both types in a single population.Polymorphism also refers to the occurrence of structurally and functionally more than two different types of individuals, called zooids within the same organism. It is a characteristic feature of Cnidarians.For example, in Obelia there are feeding individuals, the gastrozooids; the individuals capable of asexual reproduction only, the gonozooids, blastostyles and free-living or sexually reproducing individuals, the medusae.