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Biotechnology
Biotechnology

... the manipulation of organisms or their genetic components to make useful products • An example of DNA technology is the microarray, a measurement of gene expression of thousands of different genes Copyright © 2008 Pearson Education Inc., publishing as Pearson Benjamin Cummings ...
Gene expression profiling during conjugation of the Tetrahymena
Gene expression profiling during conjugation of the Tetrahymena

... Cyclin genes were identified at the Tetrahymena Genome Database (Stover et al., 2006) by searching for proteins with the keyword “cyclin”. A BLAST search with a cyclin protein sequence ensured that all cyclin genes were identified using this method. Microarray data during conjugation (Miao et al., 2 ...
Lab 3 minipreps, RE, gel
Lab 3 minipreps, RE, gel

... There are a number of techniques for isolating plasmid DNA. Most labs have adopted one of the spin column kits on the market. These are fast and reliable. For DNA purification, we will use anion-exchange resin/ spin column technique available through Qiagen (Santa Clarita, CA). It is based on the al ...
DNA transcription
DNA transcription

... Termination is the ending of transcription, and occurs when RNA polymerase crosses a stop (termination) sequence in the gene. The mRNA strand is complete, and it detaches from DNA. ...
Biotechnology Laboratory
Biotechnology Laboratory

... times on each array. In addition there are ~6000 high-density “tiling” probes covering upstream untranslated (UTR) regions of ~200 genes of interest for the purpose of mapping transcription start sites. In array design 2, most genes in Synechococcus are covered with 3 probes repeated three times on ...
Introduction of an Active DNA Microarray Fabrication for Medical
Introduction of an Active DNA Microarray Fabrication for Medical

... acids. A man has approximately 100,000 genes that could be potentially tested for defects or diseases. In the past, gene detection using DNA hybridization can be done only a few genes at once. In this technique, the DNA probe is labeled single-stranded DNA to provide detectable signals, however t h ...
Powerpoint Show on Dot Matrix
Powerpoint Show on Dot Matrix

... are not very critical for its function, random mutations can easily accumulate. • In parts of the sequence that are critical for the function of the protein, hardly any mutations will be accepted; nearly all changes in such regions will destroy the function. ...
2.6 Structure of DNA and RNA
2.6 Structure of DNA and RNA

... DNA is a double helix made of two antiparallel strands of nucleotides linked by hydrogen bonding between complementary base pairs. Crick and Watson’s elucidation of the structure of DNA using model making. Drawing simple diagrams of the structure of single In diagrams of DNA structure, the helical n ...
How an Organism`s Genotype Determines Its Phenotype How an
How an Organism`s Genotype Determines Its Phenotype How an

... • Mutations may result from – errors in DNA replication or recombination or ...
Lecture 14
Lecture 14

... ribonucleotides into RNA during transcription if such labeled nucleotides are provided to it. If a specific site of a vector or DNA is transcribed in such way, RNA probes (or transcripts) of defined length and sequence can be obtained. • Initially RNA probes were obtained from RNA polymerase from E. ...
Author - Princeton ISD
Author - Princeton ISD

... students often lose track of where amino acids originate from, and the purpose of protein synthesis. Once synthesized on the ribosome, proteins remain in their folded state. Students often believe that after a protein is released from the ribosomes, there are no further modifications that occur. All ...
Cremello Perlino - Pony Club Victoria
Cremello Perlino - Pony Club Victoria

... creme gene instead of one like a Palomino or Buckskin. In other words a Palomino is a "chestnut" with one creme gene and a Cremello is a "chestnut" with two creme genes. A Buckskin is a "bay" with one creme gene and a Perlino is a "bay" with two creme genes. Cremellos and Perlinos have pink skin and ...
Gene predictions: structural, discovery, functional part 1
Gene predictions: structural, discovery, functional part 1

... prokaryotes. • What about eukaryotes? Why might this happen? If a region of DNA is different in composition than the rest of the genome then the gene finders will score the ORFs poorly when in fact they are real genes. Different composition may come about in many ways – one common way is through lat ...
The Central Dogma - Assets - Cambridge University Press
The Central Dogma - Assets - Cambridge University Press

... The pairs of autosomes in a cell should not be confused with the double-stranded nature of DNA. Each Chromosome 1 is double-stranded. Furthermore, the two Chromosomes 1 are nearly identical but not completely so. Wherever one contains a gene received from the mother, the other contains a gene from t ...
PDF - Bentham Open
PDF - Bentham Open

... sequences. Previously, we determined the ratio of nucleotides to the total number of nucleotides in the coding region on the genome or that of amino acids to the total number of amino acid presumed to be encoded by the genome. This analysis showed that the genome is homogeneously constructed from pu ...
Powerpoint Slides
Powerpoint Slides

... • Methyl group lie in the major groove and can be used in the interaction with DNA interaction proteins. • Importance of DNA methylation in replication: it is used to differentiate between the new and old strand. If there is a mutation, the repairing system will use the methylated strand as the temp ...
Practical database searching
Practical database searching

... more powerful than percentage identity (which is best not even considered unless the identity is very high)7. Fortunately, the E values from FASTA, SSEARCH and NCBI gapped BLAST seem to be accurate and are therefore easy to interpret (see Ref. 7). The E value of a match should measure the expected n ...
SUMMARY Evidence 1s summarized showing that thymine methyls
SUMMARY Evidence 1s summarized showing that thymine methyls

... A third reason may have to do with gene expression. That is, thymine methyls may have Increased or decreased the ability of enzymes and/or regulatory proteins to bind to specific sequences. An example 1s the lac repressor which binds nonspecifically to poly(dA-dll) with 20-fold greater affinity than ...
lecture07_13
lecture07_13

... -Searching for motifs which are enriched in one set but not in a random set - Use experimental information to rank the sequences according to their binding affinity and search for enriched motifs at the top of the list ...
Go-ChIP-Grade™ Purified anti-Histone H3 (C-terminus
Go-ChIP-Grade™ Purified anti-Histone H3 (C-terminus

... Histones are basic nuclear proteins that are responsible for the nucleosome structure of the chromosomal fiber in eukaryotes. Nucleosomes consist of approximately 146bp of DNA wrapped around a histone octamer composed of pairs of each of the four core histones (H2A, H2B, H3, and H4) limiting DNA acc ...
A Biology Primer for Computer Scientists
A Biology Primer for Computer Scientists

... DNA replication is the process by which a double-stranded DNA sequence produces two double-stranded sequences identical (in the absence of errors!) to the original one. The way this happens is that the original complementary strands unwind and for each of them a new complementary strand is synthesiz ...
Primer on Comparative Genomics in PLoS
Primer on Comparative Genomics in PLoS

... Conserved: Derived from a common ancestor and retained in contemporary related species. Conserved features may or may not be under selection. Evolutionary drift: The accumulation of sequence differences that have little or no impact on the fitness of an organism; such neutral mutations are not under ...
Study Guide B
Study Guide B

... Because A only pairs with T and C only pairs with G, the amount of A will be equal to the amount of T, and the amount of C will be equal to the amount of G. ...
Protein Synthesis and Processing
Protein Synthesis and Processing

... DNA is often referred to as the genetic blueprint. In the same way blueprints produced by an architect contain the instructions for construction of a building, the DNA found inside the nucleus of cells contains the instructions for assembling a living organism. In an architect’s blueprint, the writt ...
2.7 DNA Transcription_translation
2.7 DNA Transcription_translation

... • The strand of DNA that is the template for mRNA is called the antisense. • The strand of DNA that is NOT a template for mRNA is called the sense strand. • RNA polymerase binds only to regions of DNA known as promoters. • Promoters are signals in DNA that indicate to the enzyme where to bind to mak ...
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Promoter (genetics)



In genetics, a promoter is a region of DNA that initiates transcription of a particular gene. Promoters are located near the transcription start sites of genes, on the same strand and upstream on the DNA (towards the 5' region of the sense strand).Promoters can be about 100–1000 base pairs long.
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