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13-2 - Lincoln Park High School
13-2 - Lincoln Park High School

... Cutting and Pasting Short sequences of DNA can be assembled using DNA synthesizers. “Synthetic” sequences can be joined to “natural” sequences using enzymes that splice DNA together. ...
Chapter 4
Chapter 4

... CHAPTER OUTLINE ...
Chapter 18~Regulaton of Gene Expression
Chapter 18~Regulaton of Gene Expression

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Eukaryotic Gene Control 14-15
Eukaryotic Gene Control 14-15

... For more than a decade, scientists have had access to a reference human genome. Now, the equivalent for the epigenome has been published, in a collection of papers appearing on 18 February in Nature and several other journals. AP Biology ...
Brooker Chapter 11
Brooker Chapter 11

... * often found nearby (-50 to -100) but can also be found great distances away in either direction ...
Noncoding DNA - University of Mysore
Noncoding DNA - University of Mysore

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There are this many chromosomes in the somatic

... into a compact object called this. ...
Gene Therapy - Problems And Challenges
Gene Therapy - Problems And Challenges

... of a nucleocapsid and a double-stranded linear DNA genome. There are over 51 different serotypes in humans, which are responsible for 5–10% of upper respiratory infections in children, and many infections in adults as well. When these viruses infect a host cell, they introduce their DNA molecule int ...
Glossary of Scientific Terms Used in this
Glossary of Scientific Terms Used in this

... that are composed of chains of amino acids. DNA codes for the amino acid sequence of proteins through sets of three nucleotide bases. Each set of three nucleotide bases is called a codon; each codon codes for one amino acid. DNA sequence: The relative order of base pairs, whether in a fragment of DN ...
Polyacrylamide gels
Polyacrylamide gels

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Chapter 10: Genetics of Viruses
Chapter 10: Genetics of Viruses

... 10.3 Plaque Formation and Intergenic Complementation in Bacteriophages Overview As mentioned in the earlier section, bacteriophages (also called phages) are viruses that infect bacteria. The genomes of bacteriophages are much smaller than those of bacteria. In many cases, the genome consists of less ...
Bio 6 – DNA & Gene Expression Lab  Overview
Bio 6 – DNA & Gene Expression Lab Overview

... Returning to the cookbook analogy, transcription is essentially making a photocopy of a recipe. The recipe is the DNA sequence encoding the instructions to build a protein, and RNA serves as a simple photocopy of the original recipe. This is a pretty good analogy, however it does not take into accou ...
DNA Technology
DNA Technology

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From DNA to RNA

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Mutations Mutations occur when inserting and deleting one or

... Mutations Mutations occur when inserting and deleting one or multiple nucleotides alter genes. There are many ways that mutations can build up over a lifetime through environmental factors such as smoking. Smoking can change the genes in your DNA. This may affect the way your tissue replicates itsel ...
encouraging diversity : mcroevolution via selection
encouraging diversity : mcroevolution via selection

... This information is stored and passed to the subsequent generation via DNA. Viruses, as exceptional entities, can contain either DNA or RNA as heritable genetic information. The chemical structures of both DNA and RNA provide mechanisms that ensure information is preserved and passed to subsequent g ...
From Gene to Protein  I.
From Gene to Protein I.

... After binding, the SRP leaves and protein synthesis resumes with the growing polypeptide snaking across the membrane into the cisternal space via a protein pore. An enzyme usually cleaves the signal polypeptide. D. Other kinds of signal peptides are used to target polypeptides to mitochondria, chlor ...
Vectors and Libraries
Vectors and Libraries

... To make a cDNA library one must first isolate mRNA from the organism of interest. We have isolated mRNA from a mixed age population of duckweed to maximize the diversity of sequences cloned. Unfortunately, once the RNA is purified, it is difficult to continue further experimentation. RNA, which is a ...
Molecular biology technique (I) Southern/Northern
Molecular biology technique (I) Southern/Northern

... incubation with proteinase. • Organic or non-inorganic extraction removes proteins. • DNA is purified from solution by alcohol precipitation. • Visible DNA fibers are removed and suspended in buffer. ...
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12-3 RNA and Protein Synthesis

... • Proteins are enzymes that catalyze and regulate chemical reactions • Proteins can also be structural. ...
PCR Polymerase Chain Reaction
PCR Polymerase Chain Reaction

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Why BLAST is great - GENI

... Sequence databases like GenBank contain all public sequences and any annotations of them Searching these databases permits you to find any genes related to your Gene of Interest (GOI), and to potentially assign it a function This is a routine, but highly sophisticated, tool used daily by genome scie ...
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IACP DNA Brochure (For PDF)

... research and (() increased awareness of the crime reduction potential of forensic DNA by executive and legislative bodies at the State! Local! and National levels! as well as by the general public# In fact! many law enforcement officials consider forensic DNA analysis the most significant advance in ...
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Cre-Lox recombination



In the field of genetics, Cre-Lox recombination is known as a site-specific recombinase technology, and is widely used to carry out deletions, insertions, translocations and inversions at specific sites in the DNA of cells. It allows the DNA modification to be targeted to a specific cell type or be triggered by a specific external stimulus. It is implemented both in eukaryotic and prokaryotic systems.The system consists of a single enzyme, Cre recombinase, that recombines a pair of short target sequences called the Lox sequences. This system can be implemented without inserting any extra supporting proteins or sequences. The Cre enzyme and the original Lox site called the LoxP sequence are derived from bacteriophage P1.Placing Lox sequences appropriately allows genes to be activated, repressed, or exchanged for other genes. At a DNA level many types of manipulations can be carried out. The activity of the Cre enzyme can be controlled so that it is expressed in a particular cell type or triggered by an external stimulus like a chemical signal or a heat shock. These targeted DNA changes are useful in cell lineage tracing and when mutants are lethal if expressed globally.The Cre-Lox system is very similar in action and in usage to the FLP-FRT recombination system.
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