Results - BioMed Central
... little thick after 15 days, at this point, the inoculated tissue surface was covered with ...
... little thick after 15 days, at this point, the inoculated tissue surface was covered with ...
BIO301 - National Open University of Nigeria
... The Hardy-Weinberg "equilibrium" refers to this stability of allele frequencies over time. A second component of the Hardy-Weinberg principle concerns the effects of a single generation of random mating. In this case, the genotype frequencies can be predicted from the allele frequencies. For example ...
... The Hardy-Weinberg "equilibrium" refers to this stability of allele frequencies over time. A second component of the Hardy-Weinberg principle concerns the effects of a single generation of random mating. In this case, the genotype frequencies can be predicted from the allele frequencies. For example ...
Activation of Silent Genes by Transposons Tn5 and TnlO
... of the target region and their own transcripts are terminatedbeforereachingthenextdownstream gene. This suggests that polarity sites are common and areusually present within the untranslated region downstream of the element. Insertions activate the adjacent gene only if no polarity site is located b ...
... of the target region and their own transcripts are terminatedbeforereachingthenextdownstream gene. This suggests that polarity sites are common and areusually present within the untranslated region downstream of the element. Insertions activate the adjacent gene only if no polarity site is located b ...
... location of the attached amino acid in a charged tRNAs and the general nature of the interaction of the tRNA with its anticodon. Upside down L-shaped structure (+2 pts) with amino acid attached to 3' end (+2 pts) and the three bases of the anticodon interacting with the three bases of the codon (+2 ...
cis667-10
... • These have important (usually fatal) consequences for the organism and its evolution • Alignments do not capture genome rearrangments Two species may have nearly the same gene sequences, but in a different order (why would the two species then be different?) ...
... • These have important (usually fatal) consequences for the organism and its evolution • Alignments do not capture genome rearrangments Two species may have nearly the same gene sequences, but in a different order (why would the two species then be different?) ...
Gene conversion and purifying selection shape nucleotide variation
... When a sample from a male showed two nucleotide peaks at one or more sites (“heterozygous” sites) in the L or M opsin gene, the individual should have two or more loci of the gene with different sequences. In this case, we conservatively inferred two loci for this gene. When a female showed heterozy ...
... When a sample from a male showed two nucleotide peaks at one or more sites (“heterozygous” sites) in the L or M opsin gene, the individual should have two or more loci of the gene with different sequences. In this case, we conservatively inferred two loci for this gene. When a female showed heterozy ...
Visualization of Biological Sequence Similarity Search
... in the cells of organisms, the function of the proteins that these genes encode, and how these proteins are related evolutionarily across organisms. Genes, composed of DNA, are represented as discrete sequences of nucleic acids, also called bases. Proteins are represented as discrete sequencesof ami ...
... in the cells of organisms, the function of the proteins that these genes encode, and how these proteins are related evolutionarily across organisms. Genes, composed of DNA, are represented as discrete sequences of nucleic acids, also called bases. Proteins are represented as discrete sequencesof ami ...
What Are Chromosomes?
... Chromosome & DNA? • Chromosomes, threadlike structures, first observed by Nageli in 1842. • Walter Flemming was the first to follow the process of mitosis and replication of chromosomes. • Thomas Morgan, in his experiments with fruit flies, described genetic recombination, and demonstrated that tra ...
... Chromosome & DNA? • Chromosomes, threadlike structures, first observed by Nageli in 1842. • Walter Flemming was the first to follow the process of mitosis and replication of chromosomes. • Thomas Morgan, in his experiments with fruit flies, described genetic recombination, and demonstrated that tra ...
QTLs - UC Davis Plant Sciences
... • Four loci influencing stamen length (three closely linked) were identified. • A single locus for style length was identified (the long style allele was shown to be dominant using a sub-NIL line in the interval of interest). ...
... • Four loci influencing stamen length (three closely linked) were identified. • A single locus for style length was identified (the long style allele was shown to be dominant using a sub-NIL line in the interval of interest). ...
Genetic Information: A Metaphor In Search of a Theory*
... ground for an important, new approach to the debate over 'genetic determinism'. Phillip Kitcher has joked that arguing against genetic determinism is like battling the undead (Kitcher In Press). The 'interactionist consensus' that all traits depend on both genetic and environmental factors has been ...
... ground for an important, new approach to the debate over 'genetic determinism'. Phillip Kitcher has joked that arguing against genetic determinism is like battling the undead (Kitcher In Press). The 'interactionist consensus' that all traits depend on both genetic and environmental factors has been ...
Chapter 12
... Figure 12.12: lac repressor monomer has several domains. Structure rendered from Protein Data Bank 1lbg by Hangli Zhan and provided by Kathleen S. Matthews, Rice University. ...
... Figure 12.12: lac repressor monomer has several domains. Structure rendered from Protein Data Bank 1lbg by Hangli Zhan and provided by Kathleen S. Matthews, Rice University. ...
seq.
... Paralogs: “deepest” bifurcation in molecular tree reflects gene duplication. The study of paralogs and their distribution in genomes provides clues on the way genomes evolved. Gen and genome duplication have emerged as the most important pathway to molecular innovation, including the evolution of de ...
... Paralogs: “deepest” bifurcation in molecular tree reflects gene duplication. The study of paralogs and their distribution in genomes provides clues on the way genomes evolved. Gen and genome duplication have emerged as the most important pathway to molecular innovation, including the evolution of de ...
Comparative Genomics of Microbes
... between genomes may allow us to understand : – How 2 organisms evolved? – Why certain bacteria cause diseases while others do not? – Identification and prioritization of drug targets ...
... between genomes may allow us to understand : – How 2 organisms evolved? – Why certain bacteria cause diseases while others do not? – Identification and prioritization of drug targets ...
Jobling, M.A. - University of Leicester
... As noted above, most of the Y chromosome escapes crossing over. Variants in its DNA sequence are therefore passed from father to son without any reshuffling. New variants sometimes arise, and tracing the patterns of these variant-carrying Y chromosomes in different populations has proved a powerful ...
... As noted above, most of the Y chromosome escapes crossing over. Variants in its DNA sequence are therefore passed from father to son without any reshuffling. New variants sometimes arise, and tracing the patterns of these variant-carrying Y chromosomes in different populations has proved a powerful ...
Nixon Evidence
... Giardia lamblia and Entamoeba histolytica are amitochondriate, microaerophilic protists which use fermentation enzymes like those of bacteria to survive anaerobic conditions within the intestinal lumen. Genes encoding fermentation enzymes and related electron transport peptides (e.g., ferredoxins) i ...
... Giardia lamblia and Entamoeba histolytica are amitochondriate, microaerophilic protists which use fermentation enzymes like those of bacteria to survive anaerobic conditions within the intestinal lumen. Genes encoding fermentation enzymes and related electron transport peptides (e.g., ferredoxins) i ...
Speciation through evolution of sex-linked genes
... the hypotheses of the association between sex linkage and speciation. The term ‘sex-linkage’ typically refers to loci present on the sex chromosomes, which are defined as the chromosome pair that carries the constitutive genes controlling whether an individual develops into a male or a female (Box 1 ...
... the hypotheses of the association between sex linkage and speciation. The term ‘sex-linkage’ typically refers to loci present on the sex chromosomes, which are defined as the chromosome pair that carries the constitutive genes controlling whether an individual develops into a male or a female (Box 1 ...
Principal Components Analysis
... placed into a matrix. This is where PCA becomes useful. PCA will find Eigenvectors and eigenvalues relevant to the data using a covariance matrix. Eigenvectors can be thought of as “preferential directions” of a data set, or in other words, main patterns in the data. For PCA on genes, an eigenvector ...
... placed into a matrix. This is where PCA becomes useful. PCA will find Eigenvectors and eigenvalues relevant to the data using a covariance matrix. Eigenvectors can be thought of as “preferential directions” of a data set, or in other words, main patterns in the data. For PCA on genes, an eigenvector ...
CapeTownGenomes
... Few genomes are completely sequenced. The completion and quality assurance needed for bacterial genomes is expensive, for larger eukaryotes even more so. ‘Finishing’ is the process by which a WGS shotgun assembly is completed (determine the sequence from any physical or sequence gaps) and furthe ...
... Few genomes are completely sequenced. The completion and quality assurance needed for bacterial genomes is expensive, for larger eukaryotes even more so. ‘Finishing’ is the process by which a WGS shotgun assembly is completed (determine the sequence from any physical or sequence gaps) and furthe ...
Temperature-sensitive control of protein activity by conditionally
... of their products. The use of temperature-sensitive alleles is a wellestablished method that is applicable to any organism upon which temperature changes can be imposed. These include viruses, prokaryotes, yeasts, insects, plants and even amphibia and fish1. However, identifying and recovering tempe ...
... of their products. The use of temperature-sensitive alleles is a wellestablished method that is applicable to any organism upon which temperature changes can be imposed. These include viruses, prokaryotes, yeasts, insects, plants and even amphibia and fish1. However, identifying and recovering tempe ...
genetic studies of the human complement c4 region in mhc class iii
... The C4 genes possess structural, allelic and isotypic variation. Another aim of these studies was to examine the extensive polymorphism of the C4 genes and the C4 gene region within the major histocompatibility complex class III. In study III, to unravel the cause of nonfunctionality of the converte ...
... The C4 genes possess structural, allelic and isotypic variation. Another aim of these studies was to examine the extensive polymorphism of the C4 genes and the C4 gene region within the major histocompatibility complex class III. In study III, to unravel the cause of nonfunctionality of the converte ...
Genetics of the Bombay Phenotype
... phenotype) and H/h. The use of the symbol h is not meant to imply that gene h produces some alternate gene product. From the study to be presented, ...
... phenotype) and H/h. The use of the symbol h is not meant to imply that gene h produces some alternate gene product. From the study to be presented, ...
ppt
... Runt DNA-binding domain. It is essential for osteoblastic differentiation and skeletal morphogenesis and acts as a scaffold for nucleic acids and regulatory factors involved in skeletal gene expression. The protein can bind DNA both as a monomer or, with more affinity, as a subunit of a heterodimeri ...
... Runt DNA-binding domain. It is essential for osteoblastic differentiation and skeletal morphogenesis and acts as a scaffold for nucleic acids and regulatory factors involved in skeletal gene expression. The protein can bind DNA both as a monomer or, with more affinity, as a subunit of a heterodimeri ...
Alfred Henry Sturtevant - National Academy of Sciences
... age map. He and others had noticed, however, that excessive variation in the amount of crossing-over sometimes occurs. The factors responsible were isolated by Sturtevant and by Muller around 1915 and were shown to act as dominant cross-over suppressors. The first clue to the nature of these factors ...
... age map. He and others had noticed, however, that excessive variation in the amount of crossing-over sometimes occurs. The factors responsible were isolated by Sturtevant and by Muller around 1915 and were shown to act as dominant cross-over suppressors. The first clue to the nature of these factors ...
Gene
A gene is a locus (or region) of DNA that encodes a functional RNA or protein product, and is the molecular unit of heredity. The transmission of genes to an organism's offspring is the basis of the inheritance of phenotypic traits. Most biological traits are under the influence of polygenes (many different genes) as well as the gene–environment interactions. Some genetic traits are instantly visible, such as eye colour or number of limbs, and some are not, such as blood type, risk for specific diseases, or the thousands of basic biochemical processes that comprise life.Genes can acquire mutations in their sequence, leading to different variants, known as alleles, in the population. These alleles encode slightly different versions of a protein, which cause different phenotype traits. Colloquial usage of the term ""having a gene"" (e.g., ""good genes,"" ""hair colour gene"") typically refers to having a different allele of the gene. Genes evolve due to natural selection or survival of the fittest of the alleles.The concept of a gene continues to be refined as new phenomena are discovered. For example, regulatory regions of a gene can be far removed from its coding regions, and coding regions can be split into several exons. Some viruses store their genome in RNA instead of DNA and some gene products are functional non-coding RNAs. Therefore, a broad, modern working definition of a gene is any discrete locus of heritable, genomic sequence which affect an organism's traits by being expressed as a functional product or by regulation of gene expression.