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MicroarraysExp
MicroarraysExp

... code for RNA and some of which are regulatory regions - i.e. they help control how the coding regions are used - e.g. promoters The supercoiling of the DNA may also control how the coding regions are used. As well, there is a lot of DNA which appears to be "junk" - i.e. to date no function is known. ...
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Chapter 3 An Introduction to Organic Compounds - Linn
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Development - s3.amazonaws.com
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... After this the process repeats until one of the three stop codons (UAA, UAG, or UGA) is reached. No tRNA has an anticodon to match these, and at this point translation stops. The mRNA is released (and can be translated again), and the new protein molecule is released. The protein molecule formed in ...
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Analysis of Microarray Gene Expression Data Using a

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powerpoint
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... mRNA copy is made of one of the DNA strands. mRNA copy moves out of nucleus into cytoplasm. tRNA molecules are activated as their complementary amino acids are attached to them. mRNA copy attaches to the small subunit of the ribosomes in cytoplasm. 6 of the bases in the mRNA are exposed in the ribos ...
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... • The catabolite activator protein (CAP) binds the CAP binding site near the lac promoter and triggers transcription. • CAP binding strengthens the lac promoter to increase expression. • CAP is regulated by cyclic AMP (cAMP) binding to it. Only when CAP is bound to cAMP can it bind DNA. • If cAMP le ...
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... one of the protein after native chemical ligation to the phosphorylated peptide. f. Calculate for each of the spectra the molecular weight. Which spectrum belongs to the ligation product? (10 points). ...
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... particle into two subparticles; the S segment and a segment containing the Alu sequences (12). The protein subunits of SRP can be released from the RNA molecule under nondenaturing conditions. Four of the SRP proteins are released as heterodimers (SRP68/72 and SRP9/14) and two as monomers (SRP19 and ...
DNA and Transcription Tutorial
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... The DNA undergoes a process called transcription. Transcription is the process where the DNA code of a gene is used to make a molecule called messenger RNA (mRNA). Examine the picture. The red letters are DNA nucleotides. The green letters are mRNA being created. Notice how mRNA nucleotides are atta ...
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protein_synthesis

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The lac Operon - kyoussef-mci
The lac Operon - kyoussef-mci

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DNA WebQuest
DNA WebQuest

... J. What is Your DNA Alias? (You DO NOT need the computer to do this part!) We use four letters to code all the information contained in DNA: A, T, C and G. The letters are used in groups of three. A group is called a codon. DNA contains the information that is needed by your body to make proteins. T ...
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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.
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