Genetic characterizations of three male-steriles in wheat, Triticum aestivum L.
... MaIe-sterility provides a quick and easy way to formulate genetic recombination in wheat. The inheritance and chromosome involvement of two spontaneous male-sterile mutants in 'Siete Cerros * spring wheat and a single gene male-sterile in 'Chancellor' winter wheat were studied. Chi square analyses o ...
... MaIe-sterility provides a quick and easy way to formulate genetic recombination in wheat. The inheritance and chromosome involvement of two spontaneous male-sterile mutants in 'Siete Cerros * spring wheat and a single gene male-sterile in 'Chancellor' winter wheat were studied. Chi square analyses o ...
Insecticide Resistance and Dominance Levels
... to the phenotype of the two corresponding homozygotes. Can dominance level be predicted? If a wildtype gene (A) mutates to a deleterious allele (a), the Aa heterozygote usually displays a wild-type phenotype: the deleterious effects of mutations are generally recessive. For almost a century the expl ...
... to the phenotype of the two corresponding homozygotes. Can dominance level be predicted? If a wildtype gene (A) mutates to a deleterious allele (a), the Aa heterozygote usually displays a wild-type phenotype: the deleterious effects of mutations are generally recessive. For almost a century the expl ...
The importance of genetic influences in asthma REVIEW H. Los* , G.H. Koppelman*
... patterns, which are characteristic of single- gene disorders. Asthma is a complex genetic disorder in which the mode of inheritance cannot be classified as autosomal, recessive or sex-linked. Moreover, it is clear that the development of asthma can be attributed to both genetic and environmental fac ...
... patterns, which are characteristic of single- gene disorders. Asthma is a complex genetic disorder in which the mode of inheritance cannot be classified as autosomal, recessive or sex-linked. Moreover, it is clear that the development of asthma can be attributed to both genetic and environmental fac ...
14 Chromosomes
... to distinguish it from the other human chromosomes. Another representation of human chromosomes is called an ideogram. Ideograms are schematic representations of chromosomes that show their relative sizes and the distinctive banding pattern of each chromosome (see figure 14.9). These banding pattern ...
... to distinguish it from the other human chromosomes. Another representation of human chromosomes is called an ideogram. Ideograms are schematic representations of chromosomes that show their relative sizes and the distinctive banding pattern of each chromosome (see figure 14.9). These banding pattern ...
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... A small plant (Colchicum autumnale) that grows across southern Europe has the common names meadow saffron, autumn crocus and naked lady. The name ‘naked lady’ is due to the fact that after the leaves of the plant appear in spring they die off, and the flowers appear in autumn on their own (see figure ...
... A small plant (Colchicum autumnale) that grows across southern Europe has the common names meadow saffron, autumn crocus and naked lady. The name ‘naked lady’ is due to the fact that after the leaves of the plant appear in spring they die off, and the flowers appear in autumn on their own (see figure ...
Pharmacogenetics of warfarin: current status and future
... both Europeans and Afro-Americans) all lead to a reduction in warfarin dose requirement.39,40 S-warfarin may also be metabolized by CYP2C8, CYP2C18 and CYP2C19 to form 4-hydroxywarfarin, although these are minor pathways.28 The genes encoding these P450 isoforms contain many functional polymorphisms ...
... both Europeans and Afro-Americans) all lead to a reduction in warfarin dose requirement.39,40 S-warfarin may also be metabolized by CYP2C8, CYP2C18 and CYP2C19 to form 4-hydroxywarfarin, although these are minor pathways.28 The genes encoding these P450 isoforms contain many functional polymorphisms ...
Epigenetic Interactions among Three dTph1 Transposons in Two
... A Novel Mechanism for Transposon Elimination ...
... A Novel Mechanism for Transposon Elimination ...
The Deletion Stocks of Common Wheat
... supported In part by a grant-ln-ald for scientific research (no. 05660008) from the Ministry of Education, Science, and Culture (Japan); by a grant-in-ald for special scientific research on agriculture, forestry, and fisheries from the Ministry of Agriculture, Forestry and Fisheries (Japan); by the ...
... supported In part by a grant-ln-ald for scientific research (no. 05660008) from the Ministry of Education, Science, and Culture (Japan); by a grant-in-ald for special scientific research on agriculture, forestry, and fisheries from the Ministry of Agriculture, Forestry and Fisheries (Japan); by the ...
Genetic analysis of seed and flower colour in flax (Linum
... known for industrial oil and fiber. Flaxseed contains Omega 3 fatty acid, lignans like secoisolariciresinol diglucoside (SDG), flavonoids and polysaccharides which offer potential health benefits. Conventional flax cultivars are brown seeded and few mutant lines are yellow seeded. The darkness of se ...
... known for industrial oil and fiber. Flaxseed contains Omega 3 fatty acid, lignans like secoisolariciresinol diglucoside (SDG), flavonoids and polysaccharides which offer potential health benefits. Conventional flax cultivars are brown seeded and few mutant lines are yellow seeded. The darkness of se ...
Randa Elfadil Ibrahim abdalla
... research for the financial support. To all those who encouraged me, I owe and gladly acknowledge a considerable debt. Finally, I would like to acknowledge and thank The National Ribat University. Abstract Introduction: Asthma is an inflammatory disease that results from interactions between multiple ...
... research for the financial support. To all those who encouraged me, I owe and gladly acknowledge a considerable debt. Finally, I would like to acknowledge and thank The National Ribat University. Abstract Introduction: Asthma is an inflammatory disease that results from interactions between multiple ...
DIFFERENTIAL GENE RESPONSE TO MUTAGENS IN
... per locus since it will be impossible to eliminate cases due to adaptation or suppressor mutations. How far this error could have affected the phenomenon of differential mutability in bacteria is difficult to assess, but it is certain that it could not be the whole explanation. There are a number of ...
... per locus since it will be impossible to eliminate cases due to adaptation or suppressor mutations. How far this error could have affected the phenomenon of differential mutability in bacteria is difficult to assess, but it is certain that it could not be the whole explanation. There are a number of ...
Cytogenetic Analysis Shows that the Unusually Large Chromosome
... (black larval marking) silkworm (Bombyx mori) strain (TWPB). We have analyzed the composition and arrangement of this large chromosome. A genetic linkage analysis shows that the large chromosome is made up of the W chromosome, the second chromosome fragment (p fragment), and the fifth chromosome (li ...
... (black larval marking) silkworm (Bombyx mori) strain (TWPB). We have analyzed the composition and arrangement of this large chromosome. A genetic linkage analysis shows that the large chromosome is made up of the W chromosome, the second chromosome fragment (p fragment), and the fifth chromosome (li ...
Genetic analysis of root-knot nematode resistance in potato
... cylinder where it induces a feeding site and becomes sedentary. The root-knot nematodes modify plant cells into several adjacent giant cells, where the potato cyst nematode induces syncytial feeding sites. Both feeding sites have intense metabolic activity and function as transfer cells for solutes. ...
... cylinder where it induces a feeding site and becomes sedentary. The root-knot nematodes modify plant cells into several adjacent giant cells, where the potato cyst nematode induces syncytial feeding sites. Both feeding sites have intense metabolic activity and function as transfer cells for solutes. ...
Publication - The University of Texas Health Science Center at
... within multicase scleroderma families tend to have concordant scleroderma-specific autoantibodies, further supporting the concept of a genetic predisposition [10]. Based on these studies, a positive family history of scleroderma confers the strongest known relative risk for disease. The investigation ...
... within multicase scleroderma families tend to have concordant scleroderma-specific autoantibodies, further supporting the concept of a genetic predisposition [10]. Based on these studies, a positive family history of scleroderma confers the strongest known relative risk for disease. The investigation ...
Richard Goldschmidt: hopeful monsters and other `heresies`
... the balance of male and female factors, and so Goldschmidt named his hypothesis “the balance theory of sex”11. Calvin Bridges would later introduce a different theory under the same name to explain intersexes in Drosophila. In an attempt to account for sex determination in all animals, Goldschmidt c ...
... the balance of male and female factors, and so Goldschmidt named his hypothesis “the balance theory of sex”11. Calvin Bridges would later introduce a different theory under the same name to explain intersexes in Drosophila. In an attempt to account for sex determination in all animals, Goldschmidt c ...
The dilemma of dominance
... Conceptual clarity may be fostered, I claim, by viewing diploid organisms as diphenic and by framing genetic causality modestly through individual alleles and their corresponding haplophenotypes. ...
... Conceptual clarity may be fostered, I claim, by viewing diploid organisms as diphenic and by framing genetic causality modestly through individual alleles and their corresponding haplophenotypes. ...
Chapter 02: Biology, Genetics, and Evolution
... OTHER: Conceptual NOTES: Pickup 68. Which of the following best describes polygenetic inheritance? a. An individual receives multiple alleles from more than two parents. b. Characteristics resulting from polygenetic inheritance exhibit a wide variation in genotypic expression. c. Characteristics res ...
... OTHER: Conceptual NOTES: Pickup 68. Which of the following best describes polygenetic inheritance? a. An individual receives multiple alleles from more than two parents. b. Characteristics resulting from polygenetic inheritance exhibit a wide variation in genotypic expression. c. Characteristics res ...
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... REFERENCES: 44 OTHER: Factual NOTES: Pickup 73. Founder effects is a type of: a. gene flow b. genetic drift c. natural selection d. environmental selection ANSWER: b REFERENCES: 45 OTHER: Factual NOTES: Pickup 74. A small group of people with several color-blind individuals moves from the mainland t ...
... REFERENCES: 44 OTHER: Factual NOTES: Pickup 73. Founder effects is a type of: a. gene flow b. genetic drift c. natural selection d. environmental selection ANSWER: b REFERENCES: 45 OTHER: Factual NOTES: Pickup 74. A small group of people with several color-blind individuals moves from the mainland t ...
How to recognize and diagnose chromosome rearrangements. David D. Perkins Background
... groups have been shot. This may require only a few seconds or it may take several minutes. Timing is determined by trial and error. Shot asci are examined at 50× or 60× magnification with illumination from below. For optimal contrast between black and nonblack ascospores, lighting is adjusted by alt ...
... groups have been shot. This may require only a few seconds or it may take several minutes. Timing is determined by trial and error. Shot asci are examined at 50× or 60× magnification with illumination from below. For optimal contrast between black and nonblack ascospores, lighting is adjusted by alt ...
Haseman, J.; (1970)The genetic analysis of quantitative traits using twin and sib data."
... hence belong to the same"Ehenoset. ...
... hence belong to the same"Ehenoset. ...
Distribution and Concordance of N-Acetyltransferase Genotype and
... NAT2.4 Polymorphisms of NAT2 are known to result in variation of acetylation activity and have been associated with the incidence of several diseases (5). Generally, single-nt substitutions in NAT2 result in low activity, decreased expression, and enzyme instability (23). A slow acetylator phenotype ...
... NAT2.4 Polymorphisms of NAT2 are known to result in variation of acetylation activity and have been associated with the incidence of several diseases (5). Generally, single-nt substitutions in NAT2 result in low activity, decreased expression, and enzyme instability (23). A slow acetylator phenotype ...
BIO 402 - National Open University of Nigeria
... In 1928 and 1929 Heitz was the first to distinguish two types of chromatin, which he named euchromatin and heterochromatin. Euchromatin stains lightly or not at all in interphase and prophase, while heterochromatin stains darkly in these stages. Heterochromatin is an extremely helpful marker for chr ...
... In 1928 and 1929 Heitz was the first to distinguish two types of chromatin, which he named euchromatin and heterochromatin. Euchromatin stains lightly or not at all in interphase and prophase, while heterochromatin stains darkly in these stages. Heterochromatin is an extremely helpful marker for chr ...
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.