• 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
RNA: Early Life Forms?
RNA: Early Life Forms?

... (1) RNA can evolve (via artificial selection) (2) Ribozymes have been selected to perform a number of protein-like tasks: phosphorylation, aminoacyl transfer, peptide bond formation, carbon-carbon bond formation ...
11.7 Repressor binds cooperatively at each operator using a helix
11.7 Repressor binds cooperatively at each operator using a helix

... Episome is a plasmid able to integrate into bacterial DNA. Epistasis Immunity in phages refers to the ability of a prophage to prevent another phage of the same type from infecting a cell. It results from the synthesis of phage repressor by the prophage genome. Induction refers to the ability of bac ...
5   end
5 end

... During translation, the mRNA 3-letter words, called codons, are read in the 5 to 3 direction (the letter at the 5’ end is at the beginning of the codon word). Each codon specifies which amino acid should be added to the polypeptide next DNA has triplets, which attach to mRNA codons Copyright © 200 ...
Five main classes of repetitive DNA
Five main classes of repetitive DNA

... We used 100,000 base pairs of human DNA. The pipeline correctly identified several exons of RBP4, but failed to generate a complete gene model. As another example, initial annotation of the rice genome yielded over 75,000 gene predictions, only 53,000 of which were complete (having initial and termi ...
Essential Knowledge
Essential Knowledge

... group of one nucleotide and the third carbon in the deoxyribose ring. This gives the DNA strand a “direction” – from the 5’ (“five prime”) end to the 3’ (“three prime”) end. By convention, a DNA sequence is always read from 5’  3’ ends. ...
I N IN  VIVO VITRO
I N IN VIVO VITRO

... only one of the strands of the double-stranded RNA. From these observations it has been concluded that the genome of the bluetongue virus is transcribed into a single-stranded RNA which functions as a messenger in the synthesis of viral-specific proteins (Huismans, 1970). The question which immediat ...
Nucleic acids
Nucleic acids

... and brings specific amino acids to the ribosome for protein synthesis • Each amino acid is recognized by one or more specific tRNA • tRNA has a tertiary structure that is L-shaped - one end attaches to the amino acid and the other binds to the mRNA by a 3-base complimentary sequence ...
AI for Synthetic Biology
AI for Synthetic Biology

... sequences that perform a specific biological function –  promoter initiates transcription –  coding sequence for a protein Promoter –  terminator that halts transcription ...
The basic unit of an immunoglobulin (Ig) molecule is composed of
The basic unit of an immunoglobulin (Ig) molecule is composed of

... overlapping subclones which encompass the coding region. A compilation of the sequence information i s presented in Fig. 2. We shall refer to the compiled sequence as LBV. There i s an open reading frame s t a r t i n g a t nucleotide 91 and extending for 700 bases. This predicts an amino acid seque ...
Detection and Measurement of Genetic Variation
Detection and Measurement of Genetic Variation

... electrically charged gel composed of starch or agarose. The slight difference in charge resulting from amino acid replacement causes the HbA and HbS forms to migrate at different rates through the gel. After several hours of migration, the protein then stained with chemical solutions so that their p ...
II. Conversion Tables and Formulas
II. Conversion Tables and Formulas

... Store RNA at –70° to –80°C, as aliquots in ethanol or isopropanol. Most RNA is relatively stable at this temperature. Centrifuge the RNA and resuspend in the appropriate RNase-free buffer before use. Drying, dissolving and pipetting RNA ...
Practice Benchmark I Page 1 of 12 Directions: Please choose the
Practice Benchmark I Page 1 of 12 Directions: Please choose the

... Traits in DNA are expressed through the process of protein synthesis, several stages of which are shown below. The expression of traits in DNA can be affected by external agents, such as chemicals or high-energy radiation. ...
The reverse two
The reverse two

... DNA-binding proteins, the one-hybrid system can be used to investigate the bases and amino acids involved in specific DNAprotein interactions. Proteins can be found that bind to any short DNA element of interest. ...
Drosophila C-terminal Binding Protein Functions as a Context
Drosophila C-terminal Binding Protein Functions as a Context

... cis (26, 27). CtBP homologs have also been reported in mouse (mCtBP1 and mCtBP2), Xenopus (XCtBP), and C. elegans (CeCtBP), where they have been shown to interact physically with a diverse set of factors (cf. Refs. 14, 26, and 28 –32). Human CtBP was identified on the basis of its ability to bind th ...
Document
Document

... B. Deciphering the Code: C. Transcription: D. RNA Processing: E. Translation!!! - Summary: The nucleotide sequence in DNA determines the amino acid sequence in proteins. A single change in that DNA sequence can affect a single amino acid, and may affect the structure and function of that protein. Be ...
Online Counseling Resource YCMOU ELearning Drive…
Online Counseling Resource YCMOU ELearning Drive…

... research.  It’s 5' -> 3' exonuclease activity can be simply removed from the holoenzyme to leave a useful molecule called the Klenow fragment.  Klenow fragment of DNA polymerase I has only 3’ -> 5‘ exonuclease activity, it is widely used in molecular biology. ...
Week Of: 8/22-8/26
Week Of: 8/22-8/26

... The learning ng: The objective should be essential an agreed upon functions of a topic, skill, or concept from the cell involve guaranteed ACPSD chemical curriculum. reactions that take place between many different types of molecules (including carbohydrate s, lipids, proteins and nucleic acids) and ...
PDF
PDF

... propidium iodide and DAPI staining (not shown). By quantitative RT-PCR we detected a decreased expression of postmeiotic markers, such as the testis-specific histone variants Prm1, Prm2 and Prm3; expression of premeiotic markers such as Ldhc was unaffected (Fig. 2B). Interestingly, several mice disp ...
Protein Synthesis - Workforce Solutions
Protein Synthesis - Workforce Solutions

... – 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 ...
Final Exam from S06
Final Exam from S06

... T F The redox reactions that occur in the electron transport chains are endothermic reactions. T F Glycolysis is thought to be the most ancient pathway for the catabolism of glucose because it does not require O2. Which statement(s) are false about control of protein function by phosphorylation T F ...
13. DNA Replication
13. DNA Replication

... a. Replication begins at origins of replication E. coli bacterial DNA  1 unique origin  bidirectional replication from origin  replication bubble (theta structure) intermediate higher organisms  multiple replication origins b. Replication forks ...
PowerPoint 簡報
PowerPoint 簡報

... Methyl groups may be attached to cytosine (C5 position) • Methyltransferases  Methyl groups provide a tag Concentrated in CG-rich domains, often in promoter regions ...
DNA and Protein Synthesis ppt outline notes 07
DNA and Protein Synthesis ppt outline notes 07

... RNA is generally ...
Lab_fundamentals
Lab_fundamentals

... 1. Add guanidinium thiocyanate to dissolve all biochemical other than nucleic acids 2. Pass the sample through a chromatography column with silica particles inside. DNA in presence of guanidinium thiocyanate bind more strongly to silica 3. DNA is recovered by adding water which destabilizes interact ...
Submission from Royal Prince Alfred Hospital Institutional Biosafety
Submission from Royal Prince Alfred Hospital Institutional Biosafety

... whether or not the vector could transduce human cells and would be injected into animals, and whether or not the shRNA could cause a tumour or immunomodulation in humans. However, while an animal or human-being modified by the introduction of a naked recombinant siRNA or oligonucleotide is not consi ...
< 1 ... 123 124 125 126 127 128 129 130 131 ... 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