• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
biology - Kendriya Vidyalaya No.1 Kanchrapara
biology - Kendriya Vidyalaya No.1 Kanchrapara

... 3. Name the type of cells the AIDS virus enters into, after getting into the human body. ...
Identity elements in tRNA-mediated transcription
Identity elements in tRNA-mediated transcription

... Jouy-en-Josas Cedex, France ...
ppt - University of Connecticut
ppt - University of Connecticut

... Fig. 9(a) shows that in genes with more transcripts is more difficult to correctly reconstruct all transcripts. As a result Cufflinks performs better on genes with few transcripts since annotations are not used in it standard settings. DRUT has higher sensitivity on genes with 2 and 3 transcripts, b ...
A wide-range phylogenetic analysis of Zic proteins: Implications for
A wide-range phylogenetic analysis of Zic proteins: Implications for

... Zic genes are descendents of this bilateralian common ancestral Zic (urbilateralian Zic), as supported by the presence of an Aintron in all the bilateralian Zic genes that we examined. The urbilateralian Zic may have already possessed the ZOC domain, as is supported by the widespread occurrence of Z ...
Pathways to abscisic acid-regulated gene expression
Pathways to abscisic acid-regulated gene expression

... similar to the amino-termini of ARF1, a transcription factor that binds to auxin response elements (Ulmasov et al., 1997), the ARF1-like MONOPTEROS gene involved in embryo axis formation and vascular development (Table 1) (Hardtke & Berleth, 1998), and several Arabidopsis DNA-binding proteins of unk ...
Molecular cloning of a cDNA encoding a novel Ca2+
Molecular cloning of a cDNA encoding a novel Ca2+

... nuclease has recently been found [6], although its function has not been characterized. In eukaryotes, no other homologs have been identi¢ed, and thus the biological function of the plant homolog is of great interest. Here we describe cDNA for staphylococcal nuclease homolog from Arabidopsis thalian ...
Question bank in Biology class XII
Question bank in Biology class XII

... 3. Name the type of cells the AIDS virus enters into, after getting into the human body. ...
Patent constraints
Patent constraints

... 1. An isolated nucleic acid molecule comprising a nucleotide sequence which (i) encodes a protein or polypeptide comprising an amino acid sequence of SEQ. ID. No. 3, SEQ. ID. No. 5, SEQ. ID. No. 7, SEQ. ID. No. 9, SEQ. ID. No. 11, SEQ. ID. No. 13, SEQ. ID. No. 15, SEQ. ID. No. 17, SEQ. ID. No. 20, S ...
Quantitative RT–PCR Platform to Measure Transcript Levels of C
Quantitative RT–PCR Platform to Measure Transcript Levels of C

... (Long et al. 2010, Tenea et al. 2011, Feng et al. 2012) and different Triticeae species (Giménez et al. 2011). While these studies have emphasized the importance of highly reliable reference genes, and identified novel reference genes for bread wheat, there is a dearth of validated reference genes ...
Sequence analysis of 16S rRNA, gyrB and catA genes and DNA
Sequence analysis of 16S rRNA, gyrB and catA genes and DNA

... approximately 1200 bp PCR product besides the approximately 1500 bp specific product, making direct sequencing impossible. Sequence analyses gave interesting results. The reported 0.2 % difference between 16S rRNA gene sequences of type strains of R. qingshengii and R. jialingiae was not found, beca ...
Protein Folding and Expression
Protein Folding and Expression

... heterologous protein expression. The Brevibacillus Expression System II enables highly efficient production of target protein in secreted form. This system allows high yield of active proteins and is wellsuited for expression of eukaryotic proteins. The Brevibacillus system is nearly free of proteas ...
Leukaemia Section t(14;22)(q32;q11) Atlas of Genetics and Cytogenetics in Oncology and Haematology
Leukaemia Section t(14;22)(q32;q11) Atlas of Genetics and Cytogenetics in Oncology and Haematology

... Result of the chromosomal anomaly Fusion protein Note Rearrangements of the three immunoglobulin genes IGK (2p12), IGH (14q32), and IGL (22q11) are often seen, especially in NHL, but it is uncommon that these genes are recombined with each other. None of these genes are known oncogenes, so how juxta ...
CHAPTER 15
CHAPTER 15

... C13. Answer: They are very far apart, at opposite ends of the molecule. C14. Answer: The role of aminoacyl-tRNA synthetase is to specifically recognize tRNA molecules and attach the correct amino acid to them. This ability is sometimes described as the second genetic code because the specificity of ...
SPT4, a gene important for tr
SPT4, a gene important for tr

... Site-directed mutagenesis of SPT4. To allow identification of the SPT4 protein, sequences that encode a 9-amino acid epitope from influenza virus hemagglutinin HA1 (Niman et al. 1983; Field et al. 1988) were inserted at the 5' end of SPT4 using oligonucleotide-directed mutagenesis (Kunkel et al. 198 ...
Synthesis of Oligonucleotides
Synthesis of Oligonucleotides

... to protect guanine (Figure 4.2). Thymidine does not require protection since it does not have an exocyclic amino group. While these acyl protecting groups are still suitable for oligonucleotide synthesis today, new chemistries and new nucleoside building blocks have been introduced, which require mi ...
Understanding the acetylome: translating targeted
Understanding the acetylome: translating targeted

... RNA synthesis rates correlated with the acetylation status of core histone tails (Fig. 1). Indeed, subsequent analysis revealed that each of the four core histones (H2A, H2B, H3, and H4) within the nucleosome contained multiple lysine residues that undergo re- ...
Stringent Response in Myxococcus xanthus
Stringent Response in Myxococcus xanthus

... Fruiting body formation Starve for amino acids Accumulation of (p)ppGpp Accumulate (p)ppGpp ??Starve for aa Fruiting bodies Is this a causal relationship? Is there a connection between initiation of fruiting body development and (p)ppGpp accumulation? ...


... suggesting that the overexpression of apoA-1-2 was a general feature of aflatoxin Bpinduced liver tumors. Hybridization to genomic DNA demonstrated that trout has two different apoA-I genes which is in contrast to other vertebrates which have one gene coding for apoA-I. Liver apoA-1-1 and -2 cDNA cl ...
1 Are the Eyes Homologous?
1 Are the Eyes Homologous?

... homology means nothing more than shared expression patterns of important regulatory genes during development, or that any assignment of homology must specify a level in order to be meaningful. Although homology may apply to (developmental) mechanisms per se (‘‘process homology’’), rather than to th ...
How cohesin and CTCF cooperate in regulating gene expression
How cohesin and CTCF cooperate in regulating gene expression

... CTCF sites by using genomic tiling arrays, which represent 3% of the non-repetitive part of the mouse genome (Parelho et al. 2008), and showed that several of these correspond to previously identified DNAse hypersensititve sites that might have a role in gene regulation. Wendt et al. mapped almost 9 ...
Biology: semester one: course outline
Biology: semester one: course outline

... Consider how physical, chemical and biological processes work together in the process of photosynthesis Relate chemical signalling to cellular response Relate the events of mitosis and meiosis to their specific purposes in the cell life cycle Use Mendelian genetics to predict the outcomes of genetic ...
Final published version
Final published version

... Manipulation of NADH-dependent steps, and particularly disruption of the las-located lactate dehydrogenase (ldh) gene in Lactococcus lactis, is common to engineering strategies envisaging the accumulation of reduced end products other than lactate. Reverse transcription-PCR experiments revealed that ...
Microsoft Word
Microsoft Word

... concentrations of the reactants in a protein-ligand association is related to the standard Gibbs free energy Gof the association process at temperature T, G= RTlnKas. Hence Kas is a quantitative measure of the ligand affinity for the protein. Comparison of the Kas values for a series of structu ...
Tuning Biphenyl Dioxygenase for Extended Substrate Specificity
Tuning Biphenyl Dioxygenase for Extended Substrate Specificity

... 1986; Bopp, 1986). Due to its broad substrate specificity, it was used as the starting template for generating variant enzymes that can act on an extended set of PCB congeners. Because substrate specificity is determined mainly by the bphA region, only this gene fragment was subjected to directed ev ...
Results - BioMed Central
Results - BioMed Central

... little thick after 15 days, at this point, the inoculated tissue surface was covered with ...
< 1 ... 10 11 12 13 14 15 16 17 18 ... 342 >

Transcriptional regulation

In molecular biology and genetics, transcriptional regulation is the means by which a cell regulates the conversion of DNA to RNA (transcription), thereby orchestrating gene activity. A single gene can be regulated in a range of ways, from altering the number of copies of RNA that are transcribed, to the temporal control of when the gene is transcribed. This control allows the cell or organism to respond to a variety of intra- and extracellular signals and thus mount a response. Some examples of this include producing the mRNA that encode enzymes to adapt to a change in a food source, producing the gene products involved in cell cycle specific activities, and producing the gene products responsible for cellular differentiation in higher eukaryotes.The regulation of transcription is a vital process in all living organisms. It is orchestrated by transcription factors and other proteins working in concert to finely tune the amount of RNA being produced through a variety of mechanisms. Prokaryotic organisms and eukaryotic organisms have very different strategies of accomplishing control over transcription, but some important features remain conserved between the two. Most importantly is the idea of combinatorial control, which is that any given gene is likely controlled by a specific combination of factors to control transcription. In a hypothetical example, the factors A and B might regulate a distinct set of genes from the combination of factors A and C. This combinatorial nature extends to complexes of far more than two proteins, and allows a very small subset (less than 10%) of the genome to control the transcriptional program of the entire cell.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report