• 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
Document
Document

... • stop codons (UAA, UAG, or UGA) of mRNA • RF-1 (Release factor-1) which binds to UAA and UAG or RF-2 (Release factor-2) which binds to UAA and UGA • RF-3 which does not bind to any termination codon, but facilitates the binding of RF-1 and RF-2 • GTP which is bound to RF-3 ...
Chapter 2 DNA to end Extended Response
Chapter 2 DNA to end Extended Response

... uses information on the mRNA; mRNA carries the genetic information of DNA; mRNA binds to ribosome; mRNA contains series of codons/base triplets; tRNA binds with an amino acid and carries it to the ribosome; tRNA has the anticodon that is complementary to the codon on the mRNA; two tRNAs bind to a ri ...
A tale of two functions: enzymatic activity and
A tale of two functions: enzymatic activity and

... electropositive surface potential, whereas the rest of the protein has a net electronegative surface potential (6). Zinc-finger domains are commonly associated with nucleic acid-binding proteins and previous studies have shown that CT does bind DNA, albeit non-specifically (7). Notably, DNA binding in ...
Lecture 7 notes - UC Davis Plant Sciences
Lecture 7 notes - UC Davis Plant Sciences

... copy themselves. A DNA transposon will extract itself from one region of the genome in order to insert itself into another. There are, however, some conditions under which a class II transposon can be replicated. For example if a class II transposon moves shortly after its sister DNA example, strand ...
Chromatin Structure and DNA Replication: Implications for
Chromatin Structure and DNA Replication: Implications for

... The local nucleoprotein complexes required to maintain a eukaryotic gene in an active or repressed state have been defined in some detail (Tjian and Maniatis 1994; Wolffe 1994a). Transcriptional activity for a given gene depends on a number of sequence-specific transcription factors (e.g., SPI), str ...
Biotechnology Vocabulary
Biotechnology Vocabulary

... o Herbicide-tolerant crops may cross-pollinate weeds, resulting in “super weeds” o Soil is being saturated with toxins, due to the ever-increasing use of herbicides and pesticides to counteract resistant weeds and insects. o Certain gene products may be ________________, thus causing harm to human h ...
Biotechnology student NOTES
Biotechnology student NOTES

... o Herbicide-tolerant crops may cross-pollinate weeds, resulting in “super weeds” o Soil is being saturated with toxins, due to the ever-increasing use of herbicides and pesticides to counteract resistant weeds and insects. o Certain gene products may be ________________, thus causing harm to human h ...
honors biology: final exam review
honors biology: final exam review

... Know the function of enzymes Know the different types of transport and which is active and passive Know isotonic, hypotonic, hypertonic solutions Know the differences between a prokaryotic and eukaryotic cell Know the goal, basic steps, and products of cellular respiration o glycolysis o Kreb’s Cycl ...
Transcriptional activation by the Antennapedia and fushi tarazu proteins in cultured Drosophila cells. Cell 57, 1017-30. pdf
Transcriptional activation by the Antennapedia and fushi tarazu proteins in cultured Drosophila cells. Cell 57, 1017-30. pdf

... gene fushi tarazu, as well as a hybrid homeodomain protein, are activators of transcription from specific promoters in cultured Drosophila cells. Sequences downstream of the Antp Pl and Ulfrabithorax transcription start sites mediate the observed activation. A TAArrich DNA sequence to which the Antp ...
The core histone-binding region of the murine cytomegalovirus 89K
The core histone-binding region of the murine cytomegalovirus 89K

... in interphase, b u t was dispersed t h r o u g h o u t the cell p l a s m a d u r i n g m e t a p h a s e (arrow in b), whereas the ...
Patrick Cramer Anton Meinhart, Tobias Silberzahn and
Patrick Cramer Anton Meinhart, Tobias Silberzahn and

... polymerase II (pol II)1 is coupled to mRNA processing, including 5⬘ capping and splicing and 3⬘-end formation of the transcript. This coupling is achieved by the binding of mRNA processing factors to the phosphorylated C-terminal repeat domain (CTD), a mobile extension of the catalytic core of pol I ...
Materials and Methods S1 Construction of recombinant HSV
Materials and Methods S1 Construction of recombinant HSV

... the Red recombination system of bacteriophage  inserted into its genome [2]. E. coli DY380 containing the respective BAC were transformed with linear recombination DNA fragments by electroporation and grown at 32C with the appropriate antibiotics for positive selection. At each mutagenesis step, c ...
DNA sequencing: methods
DNA sequencing: methods

... The E value represents the chance that the similarity is random and therefore insignificant. Essentially, the E value describes the random background noise that exists for matches between sequences. For example, an E value of 1 assigned to a hit can be interpreted as meaning that in a database of th ...
Drosophila Set1 is the major histone H3 lysine 4 trimethyltransferase
Drosophila Set1 is the major histone H3 lysine 4 trimethyltransferase

... dSet1 complex is identical in its composition to its human counterpart and has strong H3K4 trimethyltransferase activity towards recombinant nucleosomes. RNAi-mediated knockdown (KD) studies demonstrated that dSet1 is responsible for bulk H3K4 di- and trimethylation, while the KD of Trx or Trr had l ...
AP genetic technology
AP genetic technology

... – Discovered bacteria have an enzyme that chops up viral DNA • Restriction enzymes cut DNA at a specific sequence • Number of cuts made in DNA will depend on number of times the “target” sequence occurs ...


... i) Briefly describe the steps involved in obtaining the required DNA fragments for the construction of the library. Discuss how you would obtain the hybridization probe to identify the hemoglobin genes and the requirement for a antibiotic resistance gene on the plasmid (4 pts). i) Cut up DNA with re ...
Methods in Molecular Biology 1297: RNA Nanotechnology and
Methods in Molecular Biology 1297: RNA Nanotechnology and

... RNA has long been recognized as a privileged player in biology, as being the only biopolymer that has the ability to serve as a repository of genetic information, an architectural building block, and a catalyst for chemical reactions. The diversity of RNA biological functions relies on complex archi ...
Lecture 9 (09/25/2007): Non-coding RNA genes
Lecture 9 (09/25/2007): Non-coding RNA genes

... Possible Approach: ...
5   end
5 end

... • Three properties of RNA enable it to function as an enzyme – It can form a three-dimensional structure because of its ability to base pair with itself – Some bases in RNA contain functional groups – RNA may hydrogen-bond with other nucleic acid molecules ...
Evaluation of the contribution of individual gene
Evaluation of the contribution of individual gene

... proliferation. We examined the effects of variation in quantitative expression of individual gene groups on GPS results and prediction of clinical risk. Methods: The first 3,500 tumor specimens processed in the Genomic Health Inc.’s reference laboratory were included. Expression of individual genes ...
Jacob/Meselson/Brenner
Jacob/Meselson/Brenner

... composed of many different individual mRNA molecules, each corresponding in base sequence to a particular segment of the DNA base sequence. Under this hypothesis, the ribosomal RNA is not genespecific, and this is the key distinction of the messenger RNA hypothesis: the same ribosomes are seen as tr ...
Powerpoint notes for chapter 17
Powerpoint notes for chapter 17

... replacing another, deletion or insertion Silent mutations – Has no negative effect on the cells in which they occur. May be in exons or simply in “unused” DNA Mis-sense mutations – Cause slight alteration of a protein. May be beneficial or harmful depending on the protein(s) affected Nonsense mutati ...
Decoding Genetics - Flinn Scientific
Decoding Genetics - Flinn Scientific

... RNA polymerase II “reads” the DNA strand and creates a strand of messenger RNA (mRNA), which then travels out through the nuclear membrane to a ribosome in the cytoplasm of the cell. The ribosome binds to the mRNA strand at the start codon. The start codon is a three base-pair nucleotide sequence—ad ...
Rice 5 S Ribosomal RNA and Its Binding Protein Genes: Structure
Rice 5 S Ribosomal RNA and Its Binding Protein Genes: Structure

... (rDNA). The clone contains 10 repeat units of 290 bp, plus 2.0 kb of flanking genomic sequence at one border. Sequencing of individual repeat units shows that the sequence of the 5 S rRNA coding region is very similar to that reported for other flowering plants, while the nontranscrihed spacer regio ...
Nucleotides - Mrs Miller's Blog | Science Revision
Nucleotides - Mrs Miller's Blog | Science Revision

... producing a complementary strand. As base pairing rules apply, this lining up will be the same as it appears on the coding strand- apart from U in RNA replacing T in DNA If a DNA template strand code reads ATTCGCGTTAAT, what would the complementary MRNA strand read? UAAGCGCAAUUA Suggest why MRNA is ...
< 1 ... 109 110 111 112 113 114 115 116 117 ... 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