• 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
Chapter 10
Chapter 10

... Chapter 10 The Structure and Function of DNA ...
CHAPTER 4: CELLULAR METABOLISM
CHAPTER 4: CELLULAR METABOLISM

... When liver glycogen stores are deplenished, fats and proteins can be metabolized to generate ATP. All organic molecules enter CR at some point in the pathway. Stored fats are the greatest reserve fuel in the body. The metabolism of an 18-C lipid will yield 146 ATP by a process called Beta Oxidation, ...
24.8 brief comms MH - Department of Entomology
24.8 brief comms MH - Department of Entomology

... Is RNAi the mechanism behind the initial silencing? There are two features of effective interference in C. elegans: it targets exons, not introns, and it depends on the canonical RNAi genes rde-1 and rde-4 (ref. 3) (see supplementary information). Tests for both show that RNAi is responsible for the ...
Conserved expression of a root-hair specific promoter LeExt1.1 from
Conserved expression of a root-hair specific promoter LeExt1.1 from

... improve nutrient uptake and transformation from soil in cassava (Manihot esculenta Crantz), a crop usually growing on acidic soils low in nutrients, particularly phosphorus. For example, when expressing a secretory phytase gene directed by a trichoblast-specific promoter LeExt1.1 (Fig. 1) in potato, ...
Spatial Relationship between Transcription Sites and Chromosome
Spatial Relationship between Transcription Sites and Chromosome

... for 1 h at 378C with an antibody recognizing acetylated histone H4, an antibody recognizing centromeres, or an antibody recognizing PML. Rabbit polyclonal antibodies (R232 and R252) against acetylated histone H4 (kindly provided by Dr. B. Turner, University of Birmingham, UK) were used. R232 polyclo ...
Gene Section GGH (gamma-glutamyl hydrolase (conjugase, folylpolygammaglutamyl hydrolase) Atlas of Genetics and Cytogenetics
Gene Section GGH (gamma-glutamyl hydrolase (conjugase, folylpolygammaglutamyl hydrolase) Atlas of Genetics and Cytogenetics

... This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 2.0 France Licence. © 2009 Atlas of Genetics and Cytogenetics in Oncology and Haematology ...
Document
Document

... About 3 million SNPs occur in the human genome, and these are becoming popular genetic markers. Why sequence the entire genome or even whole genes? ...
Answers to end of chapter questions
Answers to end of chapter questions

... regarding human cells? (C) There are 1013 cells present in an adult human made up of over 400 specialized types ...
Protein Synthesis:
Protein Synthesis:

... multiple ribosomes being able to attach themselves to one mRNA chain, thus allowing multiple proteins to be constructed at once. An mRNA chain with multiple ribosomes is called a polysome. Also, as prokaryotes have no nucleus, an mRNA can be translated while it is still being transcribed. This is no ...
DNA Sequencing
DNA Sequencing

... Results of the Human Genome Project Humans have ~21,000 genes in 3.2 billion nucleotide pairs ● Only ~1.5% of the DNA codes for proteins, tRNAs, or rRNAs ● The remaining 88.5% of the DNA contains – Control regions such as promoters and enhancers – Unique noncoding DNA – Repetitive DNA – Found in ce ...
Protein Synthesis:
Protein Synthesis:

... multiple ribosomes being able to attach themselves to one mRNA chain, thus allowing multiple proteins to be constructed at once. An mRNA chain with multiple ribosomes is called a polysome. Also, as prokaryotes have no nucleus, an mRNA can be translated while it is still being transcribed. This is no ...
The Three Domains of Life:
The Three Domains of Life:

... PARSIMONY (PROTPARS)(which is the exact number of nucleotide replacements that are minimally necessary to bring about the difference in amino acid sequence between 2 species) (Felsenstein, 1995). For each protein analyzed, alignments comprised four sequences from the same domain, or a systematic al ...
book ppt
book ppt

... Concept 13.3 Genes and Gene Expression Can Be Manipulated ...
Chapter 13 from book
Chapter 13 from book

... Concept 13.3 Genes and Gene Expression Can Be Manipulated ...
PROTEIN SYNTHESIS
PROTEIN SYNTHESIS

... Transcription begins with the opening and unwinding of a small portion of the DNA double helix to expose the bases on each DNA strand. One of the two strands of the DNA double helix then acts as a template for the synthesis of RNA. Ribonucleotides are added, one by one, to the growing RNA chain, and ...
Recombinant DNA
Recombinant DNA

... Concept 13.3 Genes and Gene Expression Can Be Manipulated ...
CET MODEL TEST PAPER -4
CET MODEL TEST PAPER -4

... 1. They can develop in to a whole individual.  2. They help in the production of monoclonal antibodies.  3. They can develop into any tissue in the body.  4. They can be used to treat infectious diseases.  24. The term” restriction” in restriction endonuclease refers to  1. Breaking phosphodiester b ...
The 14-3-3 proteins in regulation of cellular metabolism - BORA
The 14-3-3 proteins in regulation of cellular metabolism - BORA

... binding partners (possibly >500) associated with most cellular processes [1–8]. Although the associations with many of these binding partners have not been completely verified yet, these proteomic and interactomic studies clearly illustrate the diverse biological functions associated with this protei ...
DNA amplification 2
DNA amplification 2

... sequence. This can be carried out by various different methods, including cell cloning where host cells (manipulated using a vector to contain a DNA insert of interest) are allowed to divide and, as they do so, the insert is replicated also. However, one particular method of DNA amplification has pr ...
The octamer binding factor Oct6: cDNA cloning and expression in
The octamer binding factor Oct6: cDNA cloning and expression in

... the cell. That is, genes are turned on and off in response to intraor extra cellular cues. Regulation of gene expression can operate at the transcriptional and/or posttranscriptional level. Although some well documented examples of regulation at the posttranscriptional level exist (1-4), the main mo ...
Can pseudocomplementary peptide nucleic acid nucleases
Can pseudocomplementary peptide nucleic acid nucleases

... Many studies show that the pcPNAs have the potential to serve as highly specific gene targeting agents. For example, Some researches showed that pcPNAs can block access of RNA polymerase to the corresponding promoter site in vitro thus inhibiting transcription initiation10,11. Later it was shown tha ...
Chapter 20 Notes AP Biology I. Chapter 20.1: DNA - Pomp
Chapter 20 Notes AP Biology I. Chapter 20.1: DNA - Pomp

... 1. Restriction  sites:  short  DNA  sequences   2. Methylation  to  adenines  or  cytosines  protects  the   bacterial  cell  from  its  own  restriction  enzymes  (-­‐CH3)   3. Most  restriction  sites  a  symmetrical  due  to  the  5’  to ...
Life Without Water: Expression of Plant LEA Genes - The Keep
Life Without Water: Expression of Plant LEA Genes - The Keep

... stresses that impact the activity of cellular water pose a threat to life (Somero, ’92). For centuries scientists have been intrigued by exceptional animals that can survive the loss of virtually all cellular water for prolonged periods (Leeuwenhoek, 1702; Crowe and Clegg, ’73). The mechanisms by wh ...
TATA  BINDING PROTEIN  AND ASSOCIATED  FACTORS ... TRANSCRIPTION:  CHARACTERIZATION OF THE B-TFIID  ACTIVITY
TATA BINDING PROTEIN AND ASSOCIATED FACTORS ... TRANSCRIPTION: CHARACTERIZATION OF THE B-TFIID ACTIVITY

... Chapter IV. Conclusion/Discussion Summary of results ..................................................... ...
Chapter 12. Protein biosynthesis (P215, sP875)
Chapter 12. Protein biosynthesis (P215, sP875)

... Bind to the small subunit, assist mRNA binding, cause dissociation of subunits after translation. Recognize and bind the mRNA cap, assist mRNA binding, hydrolyze ATP to drive scanning for the initiator codon. Promotes GTP hydrolysis and release of other initiator factors. ...
< 1 ... 70 71 72 73 74 75 76 77 78 ... 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