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 ...
Microbial Genetics - University of Montana
... – Early transfer of distal markers • Markers that were far from oriT in chromosome of Hfr will be close in F’, and transferred early • Recipient is merodiploid and transconjugant, not recombinant • Capable of conjugation ...
... – Early transfer of distal markers • Markers that were far from oriT in chromosome of Hfr will be close in F’, and transferred early • Recipient is merodiploid and transconjugant, not recombinant • Capable of conjugation ...
3. The evolution of post-zygotic isolation barriers by immune
... fitness valley (Fig. 1) [6,7]. It proposes that incompatible genes may arise in divergent lineages, which are neutral in a non-hybrid genetic background. However, it is agnostic about the reasons that drive divergence at incompatible loci. The major advance made by Dobzhansky and Muller was the conc ...
... fitness valley (Fig. 1) [6,7]. It proposes that incompatible genes may arise in divergent lineages, which are neutral in a non-hybrid genetic background. However, it is agnostic about the reasons that drive divergence at incompatible loci. The major advance made by Dobzhansky and Muller was the conc ...
PDF - Journal of Genomics
... biotypes of the soybean aphid have been identified in Midwest growing regions; biotypes are based on the ability to overcome host-plant resistance provided by one or more of these Rag genes. Biotype 2 can override the Rag1 gene (27), while biotype 3 can deride Rag2 resistance (28). Biotype 4 is capa ...
... biotypes of the soybean aphid have been identified in Midwest growing regions; biotypes are based on the ability to overcome host-plant resistance provided by one or more of these Rag genes. Biotype 2 can override the Rag1 gene (27), while biotype 3 can deride Rag2 resistance (28). Biotype 4 is capa ...
Problems from Strickberger`s Genetics
... basis explain your views as to whether the trait is most likely caused by a dominant allele. (b) Assume that this same pedigree is also found in an Asian family, and that the shaded trait occurs in Asia with a frequency of less than .01 percent. Under these circumstances, explain your views as to wh ...
... basis explain your views as to whether the trait is most likely caused by a dominant allele. (b) Assume that this same pedigree is also found in an Asian family, and that the shaded trait occurs in Asia with a frequency of less than .01 percent. Under these circumstances, explain your views as to wh ...
An acyltransferase-like gene obtained by differential gene
... consistent with a report that QAs are synthesized in the shoot tissues of L. angustifolius (Lee et al. 2007). A genomic PCR was performed by using the genomic DNA extracted from young leaves of both bitter and sweet cultivars of L. angustifolius (Qiagen DNeasy Plant Mini Kit). Genomic PCR was carrie ...
... consistent with a report that QAs are synthesized in the shoot tissues of L. angustifolius (Lee et al. 2007). A genomic PCR was performed by using the genomic DNA extracted from young leaves of both bitter and sweet cultivars of L. angustifolius (Qiagen DNeasy Plant Mini Kit). Genomic PCR was carrie ...
A wide-range phylogenetic analysis of Zic proteins: Implications for
... process of Zic genes as follows (Fig. 5A). The earliest Zic genes that appeared in ancestral Eumetazoa or metazoans, probably in the pre-Cambrian era, may have shared common structural features, namely the ZF and ZF-NC domains. Exon–intron boundaries are not conserved between Eumetazoa and cnidarian ...
... process of Zic genes as follows (Fig. 5A). The earliest Zic genes that appeared in ancestral Eumetazoa or metazoans, probably in the pre-Cambrian era, may have shared common structural features, namely the ZF and ZF-NC domains. Exon–intron boundaries are not conserved between Eumetazoa and cnidarian ...
PopGen2: Linkage Disequilibrium
... An alternative to the family study is a population based approach called LINKAGE DISEQUILIBRIUM MAPPING (or LD MAPPING), and sometimes called an ALLELIC ASSOCIATION STUDY, and it is applied to a population rather than a family pedigree. LD mapping is based on the fact that the mutation in the gene t ...
... An alternative to the family study is a population based approach called LINKAGE DISEQUILIBRIUM MAPPING (or LD MAPPING), and sometimes called an ALLELIC ASSOCIATION STUDY, and it is applied to a population rather than a family pedigree. LD mapping is based on the fact that the mutation in the gene t ...
Early frameshift alleles of zebrafish tbx5a that fail to
... While cardiac defects were fully penetrant in homozygous and trans-heterozygous mutants, the expressivity of the cardiac phenotype was highly variable, ranging from inflow tract defects (Fig. 1F) to mis-looped chambers (Fig. 1G). Live imaging using selective plane illumination microscopy (SPIM) allo ...
... While cardiac defects were fully penetrant in homozygous and trans-heterozygous mutants, the expressivity of the cardiac phenotype was highly variable, ranging from inflow tract defects (Fig. 1F) to mis-looped chambers (Fig. 1G). Live imaging using selective plane illumination microscopy (SPIM) allo ...
Marine integrons containing novel integrase genes
... In order to understand the structure and biological significance of integrons and associated gene cassettes in marine polluted sediments, metagenomic DNAs were extracted from sites at Suez and Tokyo Bays. PCR amplicons containing new integrase genes, intI, linked with novel gene cassettes, were reco ...
... In order to understand the structure and biological significance of integrons and associated gene cassettes in marine polluted sediments, metagenomic DNAs were extracted from sites at Suez and Tokyo Bays. PCR amplicons containing new integrase genes, intI, linked with novel gene cassettes, were reco ...
Isolation and Characterization of Rice MADS Box Gene
... maize,11^13 and sorghum.14 The conserved domain in MADS from many species has been a good target for examining the evolutionary diversification of eukaryotic morphology.15 However, the function of the MADS box genes of monocotyledons has not been studied in detail yet, as it is difficult to obtain t ...
... maize,11^13 and sorghum.14 The conserved domain in MADS from many species has been a good target for examining the evolutionary diversification of eukaryotic morphology.15 However, the function of the MADS box genes of monocotyledons has not been studied in detail yet, as it is difficult to obtain t ...
Hd6, a rice quantitative trait locus involved in photoperiod
... In this region, we found only one EST (C10214), which showed high homology with the CK2␣ gene of Arabidopsis and maize. Second, the CK2␣ allele of Nipponbare has a premature stop codon that is not found in the same position in the Kasalath allele (Fig. 4B). The Kasalath mRNA has an ORF (333 aa) whos ...
... In this region, we found only one EST (C10214), which showed high homology with the CK2␣ gene of Arabidopsis and maize. Second, the CK2␣ allele of Nipponbare has a premature stop codon that is not found in the same position in the Kasalath allele (Fig. 4B). The Kasalath mRNA has an ORF (333 aa) whos ...
Identifying Signatures of Natural Selection in Tibetan Data
... hypoxia. We looked across each chromosome to identify genomic regions with previously unknown function with respect to altitude phenotypes. In addition, groups of genes functioning in oxygen metabolism and sensing were examined to test the hypothesis that particular pathways have been involved in ge ...
... hypoxia. We looked across each chromosome to identify genomic regions with previously unknown function with respect to altitude phenotypes. In addition, groups of genes functioning in oxygen metabolism and sensing were examined to test the hypothesis that particular pathways have been involved in ge ...
Estonian HumanGenesResearchAct.
... the restrictions on the use of tissue samples, descriptions of DNA, descriptions of state of health and genealogies collected in the Gene Bank; ...
... the restrictions on the use of tissue samples, descriptions of DNA, descriptions of state of health and genealogies collected in the Gene Bank; ...
SM-Day 1
... … neglects back and parallel substitutions: %ID goes falsely to zero at large evolutionary divergences. … uses information only from sites that are identical. Throws out information from the mutated sites. … includes no information about which kinds of changes are more likely to occur than oth ...
... … neglects back and parallel substitutions: %ID goes falsely to zero at large evolutionary divergences. … uses information only from sites that are identical. Throws out information from the mutated sites. … includes no information about which kinds of changes are more likely to occur than oth ...
Pelagia Research Library Exogenous gene transfer in Assam tea
... double distilled water, dried on sterile filter paper and used as explant for somatic embryo development. Surfacesterilized cotyledons were then cultured on IM containing full-strength basal MS salts [17], 20 g.L-1 sucrose, and 0.65 % (w/v) agar (pH 5.6-5.8). After a month, somatic embryogenic calli ...
... double distilled water, dried on sterile filter paper and used as explant for somatic embryo development. Surfacesterilized cotyledons were then cultured on IM containing full-strength basal MS salts [17], 20 g.L-1 sucrose, and 0.65 % (w/v) agar (pH 5.6-5.8). After a month, somatic embryogenic calli ...
Chapter Five Section One and Two Study Guide
... Chapter Five Section One and Two Study Guide – KEY ...
... Chapter Five Section One and Two Study Guide – KEY ...
A program for annotating and predicting the effects of single
... (i) variant information (genomic position, the reference and variant sequences, change type, heterozygosity, quality and coverage); (ii) genetic information (gene Id, gene name, gene biotype, transcript ID, exon ID, exon rank); and (iii) effect information (effect type, amino acid changes, codon cha ...
... (i) variant information (genomic position, the reference and variant sequences, change type, heterozygosity, quality and coverage); (ii) genetic information (gene Id, gene name, gene biotype, transcript ID, exon ID, exon rank); and (iii) effect information (effect type, amino acid changes, codon cha ...
THE STRUCTURE OF CHROMATIN
... structure. (When genes are active in a chromosome then of course transcription is occurring. Then the chromosome, and thus chromatin, will also be associated with RNA if we analyze its chemical composition.) The structure of the interphase chromosome (1) Each interphase chromosome contains one DNA d ...
... structure. (When genes are active in a chromosome then of course transcription is occurring. Then the chromosome, and thus chromatin, will also be associated with RNA if we analyze its chemical composition.) The structure of the interphase chromosome (1) Each interphase chromosome contains one DNA d ...
Gene cloning of P43 surface protein of toxoplasma gondii tachyzoite
... depends on the stage of the pregnancy period which the infection occurs (Zhao 1992; Wallon et al, 2002). This parasite will be detected in human beings by serological tests only, and specific antigen is very essential in diagnosis system. P43 (SAG3) is one member of the redundant system of T. gondii ...
... depends on the stage of the pregnancy period which the infection occurs (Zhao 1992; Wallon et al, 2002). This parasite will be detected in human beings by serological tests only, and specific antigen is very essential in diagnosis system. P43 (SAG3) is one member of the redundant system of T. gondii ...
Genetic Causes of Phenotypic Adaptation to the Second
... ABSTRACT Hybridization is known to improve complex traits due to heterosis and phenotypic robustness. However, these phenomena have been rarely explained at the molecular level. Here, the genetic determinism of Saccharomyces cerevisiae fermentation performance was investigated using a QTL mapping ap ...
... ABSTRACT Hybridization is known to improve complex traits due to heterosis and phenotypic robustness. However, these phenomena have been rarely explained at the molecular level. Here, the genetic determinism of Saccharomyces cerevisiae fermentation performance was investigated using a QTL mapping ap ...
Zygotic Lethal Mutations With Maternal Effect Phenotypes in
... The 143 mutations inthis group were set up for GLC analysis at least one additional time and the specificity and penetrance of the phenotypes examined carefully. From the original collection of 143, 78 were associated with distinctive phenotypes (Table 2, Figure 1) and were thus retained. Results fr ...
... The 143 mutations inthis group were set up for GLC analysis at least one additional time and the specificity and penetrance of the phenotypes examined carefully. From the original collection of 143, 78 were associated with distinctive phenotypes (Table 2, Figure 1) and were thus retained. Results fr ...
A Chromosome Assay Method for the Detection of
... There are 18 further h-c groups of A . nidulans known to date (Croft & Jinks, 1977). If more than two het gene differences are involved between a member of any one of these groups and a Glasgow master strain and particularly if the exact number of he?gene differences is not known, then it would be d ...
... There are 18 further h-c groups of A . nidulans known to date (Croft & Jinks, 1977). If more than two het gene differences are involved between a member of any one of these groups and a Glasgow master strain and particularly if the exact number of he?gene differences is not known, then it would be d ...
Orientation of the transcription factor binding
... challenge is to expand the known repertoire of TF-target pairs by identifying novel Transcription Factor Binding Sites (TFBS) based on sequence data. One main difficulty in such computational predictions is the large number of false positives they generate. Here we examine the association of five fe ...
... challenge is to expand the known repertoire of TF-target pairs by identifying novel Transcription Factor Binding Sites (TFBS) based on sequence data. One main difficulty in such computational predictions is the large number of false positives they generate. Here we examine the association of five fe ...
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.