Pollen developmental biology
... and microspore degeneration. In dex1, the tapetum appears normal, and a callose wall and primexine are present. Therefore it was concluded that primexine and the callose wall do not play a direct role in pattern formation, but the plasma membrane is likely to be important (Paxson-Sowders et al.1997 ...
... and microspore degeneration. In dex1, the tapetum appears normal, and a callose wall and primexine are present. Therefore it was concluded that primexine and the callose wall do not play a direct role in pattern formation, but the plasma membrane is likely to be important (Paxson-Sowders et al.1997 ...
MHC I molecule(!) - immunology.unideb.hu
... MHC I expression of the host cells NK cells possess various inhibitory NK cell receptors which recognise different MHC class I molecules. Decreased or missing MHC I molecule expression on the target cells results NK cell activation. • Absence of polymorphic MHC class I molecules: - HLA-C alleles are ...
... MHC I expression of the host cells NK cells possess various inhibitory NK cell receptors which recognise different MHC class I molecules. Decreased or missing MHC I molecule expression on the target cells results NK cell activation. • Absence of polymorphic MHC class I molecules: - HLA-C alleles are ...
Mothers against dpp participates in a DPP/TGF
... Expression of a lab reporter gene containing a DPP-independent central nervous system enhancer and a DPP-dependent ps7 midgut endoderm enhancer in a Mad+ background is shown in Fig. 2A. Fig. 2B,D show the anterior expansion of lab midgut endoderm expression in response to ubiquitously expressed tkvQ ...
... Expression of a lab reporter gene containing a DPP-independent central nervous system enhancer and a DPP-dependent ps7 midgut endoderm enhancer in a Mad+ background is shown in Fig. 2A. Fig. 2B,D show the anterior expansion of lab midgut endoderm expression in response to ubiquitously expressed tkvQ ...
Patterning Muscles Using Organizers: Larval Muscle
... The role of the persistent larval muscles in the development of the DLMs has been addressed systematically only recently. Laser ablation experiments have suggested that although DLM development can proceed apparently normally in their absence, the larval muscles are required for regulating the numbe ...
... The role of the persistent larval muscles in the development of the DLMs has been addressed systematically only recently. Laser ablation experiments have suggested that although DLM development can proceed apparently normally in their absence, the larval muscles are required for regulating the numbe ...
Transvection Is Common Throughout the Drosophila
... Figure 1 Independent labeling of two hemilineages in the larval ventral nervous system. (A) Schematic of a CRMGAL4 transgene inserted into an attP site. Red-shaded boxes indicate sequences that originate from the attBcontaining CRM-GAL4 vector. Yellow-shaded boxes indicate sequences from the attP-c ...
... Figure 1 Independent labeling of two hemilineages in the larval ventral nervous system. (A) Schematic of a CRMGAL4 transgene inserted into an attP site. Red-shaded boxes indicate sequences that originate from the attBcontaining CRM-GAL4 vector. Yellow-shaded boxes indicate sequences from the attP-c ...
Optimizing selection for quantitative traits with information on an
... emphasis on the major gene (genotypic selection). The latter maximizes the single-generation response for a major gene with additive effects. For the example considered, differences between selection methods in cumulative response at the end of a planning horizon of 5, 10, or 15 generations were sma ...
... emphasis on the major gene (genotypic selection). The latter maximizes the single-generation response for a major gene with additive effects. For the example considered, differences between selection methods in cumulative response at the end of a planning horizon of 5, 10, or 15 generations were sma ...
Establishing neuroblast-specific gene expression in the Drosophila
... neuroectodermal clusters and neuroblasts. The neuroectoderm can be divided into 7 rows (1-7, from anterior to posterior) and 3 columns (medial, intermediate and lateral), based on boundaries of gene expression and the arrangement of neuroblasts (Campos-Ortega and Hartenstein, 1985; Doe, 1992; Broadu ...
... neuroectodermal clusters and neuroblasts. The neuroectoderm can be divided into 7 rows (1-7, from anterior to posterior) and 3 columns (medial, intermediate and lateral), based on boundaries of gene expression and the arrangement of neuroblasts (Campos-Ortega and Hartenstein, 1985; Doe, 1992; Broadu ...
uncorrected page proofs
... Today, in hospital cytogenetic laboratories, images of chromosome sets from cells are captured by a camera attached to a microscope (see figure 14.11). The images are then transferred to a computer where a scientist uses special software, such as CytoVision, that analyses the chromosomes from cells ...
... Today, in hospital cytogenetic laboratories, images of chromosome sets from cells are captured by a camera attached to a microscope (see figure 14.11). The images are then transferred to a computer where a scientist uses special software, such as CytoVision, that analyses the chromosomes from cells ...
The Plasmodium 6-cysteine protein family in sexual and sporozoite
... Recently, the structure of the 6-cysteine domain has been analyzed by comparative modeling. Through similarity with the SAG1 protein of Toxoplasma gondii, the first cysteine in this domain is predicted to bond with the second cysteine, the next cysteine bond is between the third and sixths cysteine ...
... Recently, the structure of the 6-cysteine domain has been analyzed by comparative modeling. Through similarity with the SAG1 protein of Toxoplasma gondii, the first cysteine in this domain is predicted to bond with the second cysteine, the next cysteine bond is between the third and sixths cysteine ...
Gene replacement with the human BRCA1 locus
... extracts (500 mg total protein) were prepared as described (Scully et al., 1997a) and subjected to immuno-precipitation with a rabbit anti-human BRCA1 polyclonal antibody (115), followed by SDS ± PAGE and immuno-blotting of precipitated proteins with an anti-human BRCA1 monoclonal antibody (SD118). ...
... extracts (500 mg total protein) were prepared as described (Scully et al., 1997a) and subjected to immuno-precipitation with a rabbit anti-human BRCA1 polyclonal antibody (115), followed by SDS ± PAGE and immuno-blotting of precipitated proteins with an anti-human BRCA1 monoclonal antibody (SD118). ...
The Work of Gregor Mendel
... Dominant and Recessive Traits Mendel’s second conclusion is called the principle of dominance. This principle states that some alleles are dominant and others are recessive. An organism with at least one dominant allele for a particular form of a trait will exhibit that form of the trait. An organis ...
... Dominant and Recessive Traits Mendel’s second conclusion is called the principle of dominance. This principle states that some alleles are dominant and others are recessive. An organism with at least one dominant allele for a particular form of a trait will exhibit that form of the trait. An organis ...
Mapping Polygenes - University of Warwick
... recombinant inbred populations (derived by inbreeding F2 progeny until they become virtually homozygous lines by selfing or sibbing) have also been used (9, 57). While the latter case has less linkage disequilibrium, due to more opportunity for meiotic recombination, it has the advantage of homozygo ...
... recombinant inbred populations (derived by inbreeding F2 progeny until they become virtually homozygous lines by selfing or sibbing) have also been used (9, 57). While the latter case has less linkage disequilibrium, due to more opportunity for meiotic recombination, it has the advantage of homozygo ...
Gene Section MLL (myeloid/lymphoid or mixed lineage leukemia) Atlas of Genetics and Cytogenetics
... in the HOX area for allowing chromatin to be open to transcription. MLL is cleaved by taspase 1 into 2 proteins before entering the nucleus: a p300/320 Nterm protein called MLL-N, and a p180 C-term protein, called MLL-C. The FYRN and a FRYC domains of native MLL associate MLL-N and MLL-C in a stable ...
... in the HOX area for allowing chromatin to be open to transcription. MLL is cleaved by taspase 1 into 2 proteins before entering the nucleus: a p300/320 Nterm protein called MLL-N, and a p180 C-term protein, called MLL-C. The FYRN and a FRYC domains of native MLL associate MLL-N and MLL-C in a stable ...
The Genes of Watermelon
... crop in the world, accounting for 6.8% of the world area devoted to vegetable crops. Watermelon is a useful vegetable crop for genetic research because of its small genome size, and the many available gene mutants. The watermelon genes were originally organized and summarized in 1944, and have been ...
... crop in the world, accounting for 6.8% of the world area devoted to vegetable crops. Watermelon is a useful vegetable crop for genetic research because of its small genome size, and the many available gene mutants. The watermelon genes were originally organized and summarized in 1944, and have been ...
14 Chromosomes
... more DNA it contains and usually the greater the number of genes that it carries. The members of each matching pair of chromosomes, such as the two number-5 chromosomes, are said to be homologous. Nonmatching chromosomes, such as a number-5 chromosome and a number-14 chromosome are said to be nonhom ...
... more DNA it contains and usually the greater the number of genes that it carries. The members of each matching pair of chromosomes, such as the two number-5 chromosomes, are said to be homologous. Nonmatching chromosomes, such as a number-5 chromosome and a number-14 chromosome are said to be nonhom ...
Changes in retinoic acid signaling alter otic patterning
... Otic defects generated by changes in RA signaling are considered mostly secondary consequences due to changes in Fgf signaling, because hindbrain patterning is disturbed in RA gain- and loss-offunction studies. In embryos with no RA signaling, such as mouse Aldh1a2 mutants, expression of Fgf3, which ...
... Otic defects generated by changes in RA signaling are considered mostly secondary consequences due to changes in Fgf signaling, because hindbrain patterning is disturbed in RA gain- and loss-offunction studies. In embryos with no RA signaling, such as mouse Aldh1a2 mutants, expression of Fgf3, which ...
IOSR Journal of Pharmacy and Biological Sciences (IOSR-JPBS)
... al., 2008). Low levels of reactive oxygen species (ROS) are crucial in maintaining normal cellular physiologic functions, such as proliferation, apoptosis, and cell cycle arrest; whereas increased levels of ROS induce oxidative stress and cause an imbalanced hemostatic microenvironment (Aggarwal and ...
... al., 2008). Low levels of reactive oxygen species (ROS) are crucial in maintaining normal cellular physiologic functions, such as proliferation, apoptosis, and cell cycle arrest; whereas increased levels of ROS induce oxidative stress and cause an imbalanced hemostatic microenvironment (Aggarwal and ...
Ethylene Signal Transduction. Moving beyond
... immature versus mature fruits. Immature fruits produce low levels of ethylene and exogenous ethylene treatment does not stimulate further synthesis (System 1). In contrast, the ethylene produced by ripening fruits is autocatalytic, stimulating its own synthesis (System 2) (Yang, 1987). The differenc ...
... immature versus mature fruits. Immature fruits produce low levels of ethylene and exogenous ethylene treatment does not stimulate further synthesis (System 1). In contrast, the ethylene produced by ripening fruits is autocatalytic, stimulating its own synthesis (System 2) (Yang, 1987). The differenc ...
Standard PDF - Wiley Online Library
... The best understood special form of P. carinii, P. carinii formae specialis (f.sp.) carinii, appears to be haploid and contains about 8 million base pairs of DNA (8.5 fg) per nucleus. The genome of P. carinii f.sp. carinii is divided into 13^15 linear chromosomes that range from 300 to 700 kb in siz ...
... The best understood special form of P. carinii, P. carinii formae specialis (f.sp.) carinii, appears to be haploid and contains about 8 million base pairs of DNA (8.5 fg) per nucleus. The genome of P. carinii f.sp. carinii is divided into 13^15 linear chromosomes that range from 300 to 700 kb in siz ...
DIFFERENTIAL GENE RESPONSE TO MUTAGENS IN
... did not occur at the sites which most frequently mutated spontaneously. While the evidence for differential mutability in microorganisms is overwhelming, the fundamental mechanism responsible for the phenomenon is still obscure. Indeed it is difficult to be certain that it is exclusively due to diff ...
... did not occur at the sites which most frequently mutated spontaneously. While the evidence for differential mutability in microorganisms is overwhelming, the fundamental mechanism responsible for the phenomenon is still obscure. Indeed it is difficult to be certain that it is exclusively due to diff ...
Unconventional initiator tRNAs sustain Escherichia coli
... (3G-C mutant) showed negligible initiation activity in E. coli. However, we observed a considerable increase in its initiation activity when the abundance of the chromosomally encoded WT initiator tRNA was reduced by knocking out three (metZ, metW, and metV) of the four initiator tRNA genes in the E ...
... (3G-C mutant) showed negligible initiation activity in E. coli. However, we observed a considerable increase in its initiation activity when the abundance of the chromosomally encoded WT initiator tRNA was reduced by knocking out three (metZ, metW, and metV) of the four initiator tRNA genes in the E ...
Consistency analysis of redundant probe sets on Affymetrix three
... results. We assess how genome-based and qualitative present/absent (P/A) screening methods affect probe set consistency, using different measures of differential expression. We use an ANOVA-based method to detect target genes whose redundant probe sets show significantly different fold-changes acros ...
... results. We assess how genome-based and qualitative present/absent (P/A) screening methods affect probe set consistency, using different measures of differential expression. We use an ANOVA-based method to detect target genes whose redundant probe sets show significantly different fold-changes acros ...
Emended description of the order Chlamydiales, proposal of
... into account recent analysis of the ribosomal operon or recently identified obligately intracellular organisms that have a chlamydia-like developmental cycle of replication. Neither does it provide a systematic rationale for identifying n e w strains. In this study, phylogenetic analyses of the 165 ...
... into account recent analysis of the ribosomal operon or recently identified obligately intracellular organisms that have a chlamydia-like developmental cycle of replication. Neither does it provide a systematic rationale for identifying n e w strains. In this study, phylogenetic analyses of the 165 ...
6. risk management plan
... Transfer of genes to other cotton plants ..................................................................... 54 Transfer of genes to other plant species ..................................................................... 54 B: Likelihood of the gene transfer hazard occurring .................... ...
... Transfer of genes to other cotton plants ..................................................................... 54 Transfer of genes to other plant species ..................................................................... 54 B: Likelihood of the gene transfer hazard occurring .................... ...
- myExperiment
... to the server. In Taverna, new tools can be ‘added’ more easily because we are often actually calling external tools Go to http://www.biocatalogue.org and search for the ‘ontology lookup service’ Look at the entry for that service and copy the WSDL ...
... to the server. In Taverna, new tools can be ‘added’ more easily because we are often actually calling external tools Go to http://www.biocatalogue.org and search for the ‘ontology lookup service’ Look at the entry for that service and copy the WSDL ...
Gene expression profiling
In the field of molecular biology, gene expression profiling is the measurement of the activity (the expression) of thousands of genes at once, to create a global picture of cellular function. These profiles can, for example, distinguish between cells that are actively dividing, or show how the cells react to a particular treatment. Many experiments of this sort measure an entire genome simultaneously, that is, every gene present in a particular cell.DNA microarray technology measures the relative activity of previously identified target genes. Sequence based techniques, like serial analysis of gene expression (SAGE, SuperSAGE) are also used for gene expression profiling. SuperSAGE is especially accurate and can measure any active gene, not just a predefined set. The advent of next-generation sequencing has made sequence based expression analysis an increasingly popular, ""digital"" alternative to microarrays called RNA-Seq. However, microarrays are far more common, accounting for 17,000 PubMed articles by 2006.