• 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
Lect-7
Lect-7

... diameter of about 55-110 nm. Genome size ranges from 33.6 – 170 kb. The genome contains unusual bases, they are 5-hydroxy-methyl cytosine (instead of cytosine). This helps in protecting the phage from the host defence system i.e. Restriction ...
6. DNA transcription/translation
6. DNA transcription/translation

... Post Termination RNA Processing ...
Wildlife Forensics Pre-Visit Lesson This pre
Wildlife Forensics Pre-Visit Lesson This pre

... nucleus of eukaryotic cells. Whether the organism is a bacterium, fungus, plant, or animal there is DNA in the organism’s cells. Each cell contains the same DNA. In sexually reproducing organisms each parent contributes a copy of half its DNA creating offspring with a unique DNA sequence. Although m ...
Functional genomics: assigning functions to genome sequences
Functional genomics: assigning functions to genome sequences

... a PE and a PPE protein: express complex, and determine its structure Research of Shuishu Wang and Michael Strong ...
Genes & Inheritance Series: Set 3 Copyright © 2005 Version: 2.0
Genes & Inheritance Series: Set 3 Copyright © 2005 Version: 2.0

... An enzyme acts on a molecule called the substrate. Enzymes are specific for the reactions they catalyze. Enzyme activity depends on the enzyme’s shape and its active site (the binding site for the substrate). Enzymes are often named for the substrate on which they work, and sometimes include the suf ...
METABOLIC PATHWAY OF AMINO ACIDS
METABOLIC PATHWAY OF AMINO ACIDS

... A.5’-deoxyribonucleoside phosphates; B. 3’-deoxyribonucleoside phosphates; C. 5’-deoxyribonucleoside diphosphates; D. 3-deoxyribonucleoside diphosphates; E. 5’-deoxyribonucleoside triphosphates. 9. Which one of the following statements about procariotic RNA polymerase is incorrect. A. It is holoenzy ...
The smallest known eukaryotic genomes encode a protein gene
The smallest known eukaryotic genomes encode a protein gene

... possesses a chromosomal organization intermediate between that of plastids and nuclei. If this is true, most proteins that are located in the symbiont plasm or the plastid, must be transported from the host cytoplasm across two membranes or across four membranes in the case of the plastid. We have s ...
Clostridium difficile toxin synthesis is negatively regulated by TcdC
Clostridium difficile toxin synthesis is negatively regulated by TcdC

... a property not seen with other anti-s factors. Thus we cannot rule out the possibility that TcdC, by directly interacting with the core RNAP, might compete with TcdR for binding to the core RNAP and thereby reduce the stability of TcdR–core complexes (Fig. 2). Despite the fact that TcdC is able to r ...
Part 1
Part 1

... 2. Replication: It is a fundamental process that occurs in all living organisms to transmit their genetic material from one generation to the next. Two copies of nucleic acid are synthesized from one parent molecule during the process of cell division such that each daughter cell obtains one copy of ...
copyright © adelaide tuition centre
copyright © adelaide tuition centre

... K. ...
ppt
ppt

... • Use RNA or single-stranded DNA complementary to mRNA of the gene of interest (antisense). • Hybridize with mRNA and block translation into protein ...
Assessing the Affect of RNA and cDNA Freeze
Assessing the Affect of RNA and cDNA Freeze

... synthesis reactions. Because this is a common occurrence with many RNA’s used for gene expression studies in microarray and RealTime qPCR, it is necessary to study the affects of freeze thaw cycling events on both total RNA and cDNA. In this study, both total RNA isolated from rat brain tissue and c ...
Last Name: First Name: Per. _____ Parent Signature: Pre
Last Name: First Name: Per. _____ Parent Signature: Pre

... mechanisms. The significance is that mutation is the primary source of genetic diversity – it is how we get brand new alleles. Genetic diversity is necessary for evolution through natural selection. Some mutations are silent (no change in amino acid) because of redundancy in the codons (64 codons fo ...
Chapter 20.
Chapter 20.

...  insert recombinant plasmid into bacteria  bacteria make lots of copies of plasmid  grow recombinant bacteria on agar plate  clone of cells = lots of bacteria  production of many copies of inserted gene ...
No Slide Title
No Slide Title

... Consider the double mutant, AB, composed of mutation A and mutation B. In general (but not always -- see below), the binding free energy perturbations caused by single mutations are additive, in other words DDG°wt-mutAB = DDG°wt-mutA + DDG°wt-mutB + DDG°i where DDG°i ≈ 0. DDG°i has been termed the “ ...
Tools for genetic analysis in Trypanosoma brucei unlinked fields
Tools for genetic analysis in Trypanosoma brucei unlinked fields

... spacer, and we have not found any advantage in minichromosome targeting, even for the dual opposing T7 promoter plasmids used for RNAi. Indeed, the 177-bp targeting efficiency appeared much lower than for the rRNA locus, especially when the selectable marker was BLE rather than HYG (our unpublished ...
MSc in Biochemistry Dissertation Project – 2nd Cycle Student´s
MSc in Biochemistry Dissertation Project – 2nd Cycle Student´s

... (AM) and glucosaminidase (GL) catalytic domains, primarily involved in cell separation, as well as in cell wall turnover and lysis. This protein has also been implicated in biofilm formation in S. aureus, not only due to its role in autolysis and subsequent genomic DNA release, but also because of i ...


... 19. The major reason for A pairing with U is: a) complementary hydrogen bonds. b) a purine-pyrimidine pair fits well in the double helix. c) efficient stacking of this arrangement of bases in the helix. d) recognition of non-’Watson-Crick’ hydrogen bonds by DNA polymerases 20. An expression vector o ...
Lecture 1: October 25, 2001 1.1 Biological Background
Lecture 1: October 25, 2001 1.1 Biological Background

... Each DNA molecule is packaged in a separate chromosome, and the total genetic information stored in the chromosomes of an organism is said to constitute its genome. With few exceptions, every cell of a Eukaryotic multi-cellular organism contains a complete set of the genome, while the difference in f ...
Resource and Policy Information Instructor: Dr. William Terzaghi
Resource and Policy Information Instructor: Dr. William Terzaghi

... To identify the types of DNA sequences found within each class they must be cloned ...
RNA sequencing - Bioinformatics.ca
RNA sequencing - Bioinformatics.ca

... Why sequence RNA (versus DNA)? • Interpreting mutations that do not have an obvious effect on protein sequence – ‘Regulatory’ mutations that affect what mRNA isoform is expressed and how much • e.g. splice sites, promoters, exonic/intronic splicing motifs, etc. ...
Evaluation of existing motif detection tools on their
Evaluation of existing motif detection tools on their

... • TFs bind specific non-coding sequences in the DNA to control the expression of their target genes  TF binding sites • All genes regulated by the same TF contain a similar TF binding site in their ...
Document
Document

... To identify the types of DNA sequences found within each class they must be cloned ...
Finding Regulatory Sites - TAMU Computer Science Faculty Pages
Finding Regulatory Sites - TAMU Computer Science Faculty Pages

... obtain an initial motif (which may not be very good), then iteratively obtain a better motif with the following two steps: • Expectation: compute the statistical composition of the current motif and find the probability of finding the site at each position in each sequence. • Maximization: These pro ...
Materials and Methods - Philosophical Transactions of the Royal
Materials and Methods - Philosophical Transactions of the Royal

... of the same gene, and similarly, 115035 and 250066 represents alleles of a single gene. As a result, we concluded that the amphioxus genome contains four RPE65/BCO/BCO2 family genes (Brafl1 protein IDs: 73359/124233, 218241, 66862, and 115035/250066; named BCO-like1, RPE65-like1, BCO-like2, and RPE6 ...
< 1 ... 106 107 108 109 110 111 112 113 114 ... 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