• Study Resource
  • Explore
    • 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
RBM3 regulates temperature sensitive miR-142–5p and miR
RBM3 regulates temperature sensitive miR-142–5p and miR

... neurologic injury (3) and antipyretic treatment is thus recommended in these cases. However letting a fever run its course can be beneficial in sepsis where an elevated temperature in the first 24 h is associated with decreased mortality in severe infections (4). MicroRNAs (miRNAs) are short RNAs (≈ ...
Powerpoint notes for chapter 17
Powerpoint notes for chapter 17

... The cycle of amino acids linking together is repeated until a “stop” codon (UAA, UAG or UGA) is reached. Once this tRNA is read, the amino acid is released from the ribosome and the protein is formed ...
CRACKING THE GENETIC CODE
CRACKING THE GENETIC CODE

... Before he could begin his experiment, Nirenberg needed both a means to separate the complex from unbound components and a method to detect tRNA binding to the ribosome. To isolate the complex he exploited the ability of nylon filters to bind large RNA molecules, such as ribosomes, but not the smalle ...
Cloning of genes from genomic DNA Part 1 and 2: DNA Isolation
Cloning of genes from genomic DNA Part 1 and 2: DNA Isolation

... (oligonucleotide primers) that flank your gene. If we heat the genomic DNA, it will denature (a.k.a. “melt” - the base pairs will break leaving us two long single stranded pieces of DNA). If we lower the temperature, the oligonucleotide primers will base pair with the complementary flanking sequence ...
9/18/08 Transcript I
9/18/08 Transcript I

... consists of a TATA box binding protein, that is abbreviated TBP. It has 8-10 transcription TATA box binding protein associated factors which are abbreviated TAF. Again the II there for TAFs II are because they are isolated from TFIID of RNA pol II. The TFIID is composed of TBP and the associated TAF ...
A significant similarity is the fact that both prokaryotes and
A significant similarity is the fact that both prokaryotes and

... the nucleus, and is easily seen using a microscope. On the other hand, prokaryotes lack this distinct nucleus and nucleur membrane but instead have a nucleoid, which is an ‘irregularly shaped region within the cell where the genetic information is localised’2 in the form of a, usually circular, doub ...
Freshman Seminar
Freshman Seminar

... reactions scanned by laser as a particular point is passed • Color picked up by detector • Output sent directly to computer ...
GEN2MHG – MOLECULAR AND HUMAN GENETICS DNA is made
GEN2MHG – MOLECULAR AND HUMAN GENETICS DNA is made

... ▪ DNA synthesis requires single stranded DNA template ▪ a protein complex origins of replication are rich in A/T (only two hydrogen bonds, therefore easier to separate than G/C rich areas) ▪ multiple replication origins Replication occurs in two directions but is semi-discontinuous due to both stran ...
nuclear envelope - Lectures For UG-5
nuclear envelope - Lectures For UG-5

... Nuclear envelope The Inner membrane The inner nuclear membrane encloses the nucleoplasm, and is covered by the nuclear lamina, It is connected to the outer membrane by nuclear pores which penetrate the membranes. the inner nuclear membrane carries unique proteins that are specific to the nucleus. T ...
Quiz 2 Review Sheet
Quiz 2 Review Sheet

... 117. What is the name given to a stretch of DNA that codes (stores the information for) for mRNA, tRNA or rRNA? 118. How are tRNA’s and rRNA’s made? 119. Describe the structure of the ribosome. What is it made of? 120. Where do the amino acids that our cells use to build polypeptides come from? Yes, ...
Biology Chapter 2 Organic Molecules 9-26
Biology Chapter 2 Organic Molecules 9-26

... 1. Look at the picture below. How many levels are there to protein structure? ...
Chapter 11
Chapter 11

... c. Topoisomerases break and rejoin the strands, “untying” the knots that form 3. DNA synthesis always proceeds in a 5’3’ direction a. DNA polymerases can add only at the 3’ end b. Nucleotides become polymerized and two phosphates are removed in the process ...
Why teach a course in bioinformatics?
Why teach a course in bioinformatics?

... spots, each spot containing a different DNA oligomer. • Each oligomer in a DNA microarray can serve as a probe to detect a unique, complementary DNA or RNA molecule. ...
Genomic organization of infectious salmon anaemia virus
Genomic organization of infectious salmon anaemia virus

... naive or ISAV-infected cells was done using a probe made from each cDNA hybridization group (Fig. 1). The RNA segments were correlated to the ISAV cDNA by consecutively hybridizing a Northern blot of mRNA from ISAV-infected cells or purified virus with cDNA from each hybridization group (Fig. 1). Ei ...
chapter 5 the structure and function of macromolecules
chapter 5 the structure and function of macromolecules

... almost everything an organism does. ○ Protein functions include structural support, storage, transport, cellular communication, movement, and defense against foreign substances. ○ Most important, protein enzymes function as catalysts in cells, regulating metabolism by selectively accelerating certai ...
Genetic Transformation computer exercise
Genetic Transformation computer exercise

... mutated (GeneB) genes; this is known as a DNA sequence alignment. An alignment uses an algorithm (a step-by-step procedure) to compare the order of nucleotide bases in the sequences and then lines them up so that the number of identical bases is maximized. The alignment program will point out those ...
PDF
PDF

... as a major player influencing the dynamics of gene regulation [1]. Usually, mature 39 ends of almost all eukaryotic mRNAs are created by a two-step reaction that involves an endonucleolytic cleavage of the pre-mRNA, followed by synthesis of a polyadenylate tail onto the upstream cleavage product. Po ...
Chapter 3: Organic Molecules
Chapter 3: Organic Molecules

... Mad cow disease (BSE or bovine spongiform encephalopathy) and related illnesses (scrapie in sheep, variant Creutzfeldt-Jakob disease in humans) are caused by an abnormal protein which can alter the shape of normal proteins. In humans, the disease leads to neurological problems and death within a yea ...
Lecture 12
Lecture 12

... prokaryotic 50S and 30S ribosomal subunits together form a 70S ribosome. The eukaryotic 60S and 40S subunits form an 80S ribosome. Prokaryotic and eukaryotic ribosomes are similar in structure, and serve the same function, namely, as the “factories” in which the synthesis of proteins occurs. - The l ...
Coffee: More Than Just a Jolt in the Morning
Coffee: More Than Just a Jolt in the Morning

... Some proponents of plant protein note that if all the agricultural land that is used for livestock was switched to growing grains, the world could feed several times as many people as are fed now (5). Although this switch would create a surplus of food there are still other reasons for switching the ...
DNA and the Genetic Code
DNA and the Genetic Code

... • Transfer RNA acts as an amino acid carrier in the formation of proteins. • Through a decoding mechanism it facilitates the addition of an amino acid to a peptide chain forming a protein. • It directs the insertion of amino acids in the proper sequence in the poly peptide chain through sets of thre ...
Nucleic Acids - Somma Science
Nucleic Acids - Somma Science

... DNA is also known as the hereditary material or genetic information. It is found in genes, and its sequence of bases makes up a code. Between "starts" and "stops," the code carries instructions for the correct sequence of amino acids in a protein (see Figure 1.3). DNA and RNA have different function ...
DNA and the Genetic Code
DNA and the Genetic Code

... • Transfer RNA acts as an amino acid carrier in the formation of proteins. • Through a decoding mechanism it facilitates the addition of an amino acid to a peptide chain forming a protein. • It directs the insertion of amino acids in the proper sequence in the poly peptide chain through sets of thre ...
DNA and RNA
DNA and RNA

... Before discussing the major role of DNA, it is important to discuss DNA’s first cousin, ribonucleic acid or RNA. Besides its chemical composition, RNA has important similarities and differences with DNA. First, like DNA, RNA has four and only four nucleotides. But unlike DNA, RNA uses the nucleotide ...
Lecture Slides
Lecture Slides

... – The ribosome splits into its subunits ...
< 1 ... 238 239 240 241 242 243 244 245 246 ... 524 >

Gene expression



Gene expression is the process by which information from a gene is used in the synthesis of a functional gene product. These products are often proteins, but in non-protein coding genes such as transfer RNA (tRNA) or small nuclear RNA (snRNA) genes, the product is a functional RNA.The process of gene expression is used by all known life - eukaryotes (including multicellular organisms), prokaryotes (bacteria and archaea), and utilized by viruses - to generate the macromolecular machinery for life.Several steps in the gene expression process may be modulated, including the transcription, RNA splicing, translation, and post-translational modification of a protein. Gene regulation gives the cell control over structure and function, and is the basis for cellular differentiation, morphogenesis and the versatility and adaptability of any organism. Gene regulation may also serve as a substrate for evolutionary change, since control of the timing, location, and amount of gene expression can have a profound effect on the functions (actions) of the gene in a cell or in a multicellular organism.In genetics, gene expression is the most fundamental level at which the genotype gives rise to the phenotype, i.e. observable trait. The genetic code stored in DNA is ""interpreted"" by gene expression, and the properties of the expression give rise to the organism's phenotype. Such phenotypes are often expressed by the synthesis of proteins that control the organism's shape, or that act as enzymes catalysing specific metabolic pathways characterising the organism.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report