• 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
Relations in Open Biological Ontologies
Relations in Open Biological Ontologies

... this would return all metabolites, genes, gene products that generally influence the activity of alcohol dehydrogenasis. however, this will not work using GO: alcohol-dehydrogenasis is or would be defined as a class, not as an instance... in effect this means since most instances are influenced by d ...
Introduction to Protein-protein Interaction
Introduction to Protein-protein Interaction

... PROTEIN STRUCTURE ...
today
today

... the -h option tells the program to use matches with E <10^-5 for the next iteration, (the default is 10-3 ) -C creates a checkpoint (called subI.ckp), -o writes the output to subI.out, -i option specifies input as using subI as input (a fasta formated aa sequence). The nr databank used is stored in ...
Name:________________________ Part A (2 pts each, 34 Pts) ; Multiple Choice. ...
Name:________________________ Part A (2 pts each, 34 Pts) ; Multiple Choice. ...

... bonds are formed this is an enthalpy effect. In addition, the transition state is stabilized due to the fact that the chemically reactive groups are held in the correct position for catalysis by the enzyme, thus the decrease in entropy that would occur if these groups were free in solution does not ...
Loss-of-Function Mutation in a Repressor Module of Human
Loss-of-Function Mutation in a Repressor Module of Human

... and Lambert (2006) found a series of short DNA sequences that are highly conserved in vertebrates but show accelerated evolution only in human and named them ‘‘HAR.’’ Prabhakar et al. (2006) and Bird et al. (2007) also conducted similar genome-wide studies. Prabhakar et al. (2008) found one such seq ...
RNA
RNA

... different bases….  There are 64 possible 3-base codons (4 x 4 x 4 = 64). ...
DNA Libraries
DNA Libraries

... road and the turns. My mind drifted back to the lab. DNA chains coiled and floated. Lurid blue and pink images of electric molecules injected themselves somewhere between the mountain road and my eyes." Opening words, Dancing Naked in the Mind Field, © 1998, by Dr. Kary Mullis, Pantheon Books. ...
Comparative genomics is a study that combines combination of
Comparative genomics is a study that combines combination of

... properties (such as activity), and a genomic presence/absence profile of a gene family, domain, or pathway. Traits are displayed on a tree using a pre-defined color code, and multiple queries can be displayed at one time by color-coding different queries using separate colors. While the TreeQ-Vista ...
01 - Denton ISD
01 - Denton ISD

... ii. The ribosome forms a peptide bond between the amino acids. It breaks the bond between the first amino acid and tRNA. iii. An exposed codon attracts a complementary tRNA bearing an amino acid. ...
Principles of Metabolic Regulation
Principles of Metabolic Regulation

... • Different proteins in the same tissue have very different half-lives – less than an hour to about a week for liver enzymes – The stability correlates with the sequence at Nterminus • Some proteins are as old as you are – Crystallins in the eye lens ...
Date: Name: SBI4U – MOLECULAR GENETICS UNIT TEST
Date: Name: SBI4U – MOLECULAR GENETICS UNIT TEST

... 9) DNA acts as a template for transcription. Which of the following statements regarding the DNA of a gene being expressed is true? a. After unwinding, both of the DNA strands act as templates. b. After unwinding, only one of the DNA strands acts as a template. c. The two strands only act as a templ ...
Slide 1
Slide 1

... • All three regulatory regions contain cis-acting regulatory sequences, which regulate transcription of genes on the same chromosome as the sequences • RNA polymerase II (Pol II) and various general transcription factors (GTFs) bind the core promoter; these are trans-acting regulatory proteins, whic ...
Biotechnology and Genetic Engineering
Biotechnology and Genetic Engineering

... gene which encodes for an ampicillin resistance (Ampr) protein. • After the transformation, the cells are grown on a solid medium called an agar plate. This medium will contain the antibiotic ampicillin. • In the presence of the ampicillin, only the bacteria containing the pGLO plasmid will have the ...
File
File

... codon, the ribosome dissociates into its two subunits and falls off the mRNA (which is recycled). -- the peptide/protein chain is released by the tRNA in the P-site into the lumen of the Rough ER (if for export), or into a transition vesicle bound for the Golgi for modifications (if it is to remain ...
- Horizon Discovery
- Horizon Discovery

... NanoLuc® luciferase is a novel, small, bright luciferase reporter. It is one third the size and 100 times brighter than the most commonly used luciferase, firefly. These features enable the development of homogenous assays for primary and secondary screening, reporting on pathways via the endogenous ...
Presentación de PowerPoint
Presentación de PowerPoint

... Some examples of self-organization which may be relevant to the origin of life ...
The return of Lamarck?
The return of Lamarck?

... articles/article.aspx?p=1896675). Next, the authors discuss the molecular pathways involved in epigenetics. In these chapters the authors provide mechanistic details along with excellent graphics to discuss the most recent aspects of chromatin remodeling, DNA methylation, histone modifications and n ...
AP Bio 11 Biotechnology - STaRT
AP Bio 11 Biotechnology - STaRT

... • The remarkable ability of bacteria to express some eukaryotic proteins underscores the shared evolutionary ancestry of living species • For example, Pax-6 is a gene that directs formation of a vertebrate eye; the same gene in flies directs the formation of an insect eye (which is quite different f ...
Chromosome Function: Sex Differences
Chromosome Function: Sex Differences

... with autosomally encoded or maternally derived factors to regulate Sxl’s sex-specific promoter. XX embryo cells have two doses of each X-linked transcription factor subunit gene; these produce sufficient protein to activate Sxl transcription (Schutt and Nöthiger, 2000). In contrast, XO or XY cells, ...
a peptide bond forms that adds an amino acid
a peptide bond forms that adds an amino acid

... • There were two hypotheses regarding the specification of amino acid sequence by a sequence of nucleotide bases: • mRNA codons and amino acids interact directly. ...
Principles of BIOCHEMISTRY
Principles of BIOCHEMISTRY

... 23.2 Cloning Vectors • Cloning vectors can be: plasmids, bacteriophages, viruses, small artificial chromosomes • Some vectors can be replicated autonomously in a host cell, other vectors can be integrated into the host chromosome • Vectors have at least one unique cloning site: a sequence cut by a ...
What is Ontology?
What is Ontology?

... – input a gene list and a subset of ‘interesting’ genes – tool shows which GO categories have most interesting genes associated with them i.e. which categories are ‘enriched’ for interesting genes – tool provides a statistical measure to determine whether enrichment is significant ...
T. congolense - Centre for Genomic Research
T. congolense - Centre for Genomic Research

... Anaemia is a common correlate of inflammatory conditions and has been associated with increases in iron stored in macrophages as ferritin or the insoluble haemosiderin. Storage is believed to be mainly regulated by hepcidin which negatively regulates the export of iron from macrophages by ferroporti ...
COA: TrueStart™ Taq DNA Polymerase, #EP0613
COA: TrueStart™ Taq DNA Polymerase, #EP0613

... TrueStart Taq DNA Polymerase was tested for yield and specificity in amplification of a 950 bp DNA fragment of the single copy gene using human genomic DNA. Quality authorized by: ...
Repetitive DNA info - A. Prokaryotes Eukaryotes Most codes for
Repetitive DNA info - A. Prokaryotes Eukaryotes Most codes for

... in which the sequence ATTCG is repeated three times.Tandem repeats can be very useful in determining parentage. Short tandem repeats are used for certain genealogical DNA tests A variable number tandem repeats (VNTR) is a short nucleotide sequence ranging from 14 to 100 nucleotides long that is orga ...
< 1 ... 87 88 89 90 91 92 93 94 95 ... 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