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1) - life.illinois.edu
1) - life.illinois.edu

... Analysis of the sequence attDOT and bacterial (attB) sequences showed that the recombination occurs between attDOT and attB by staggered cleavages seven base apart on each att site. The sites of cleavage in attDOT are shown between the D and D’ sites in the sequence. In vitro experiments indicated t ...
REPLICATION A DNA molecule separates into two template strands
REPLICATION A DNA molecule separates into two template strands

BioSc 231 Exam 5 2003
BioSc 231 Exam 5 2003

... Name __________________________________ ...
RESEARCH GLOSSARY
RESEARCH GLOSSARY

... Gene: the unit of inheritance consisting of a DNA sequence Genetic engineering: altering the genetic structure of an organism by adding foreign genes or altering or removing native genes through technology Genetic map: map giving relative distance and position of one gene with respect to other genes ...
Slayt 1
Slayt 1

... The “lysogenic” phase of the lambda life cycle starts the same way: the lambda phage binds to the bacterial cell and injects its DNA. Once inside the cell, the lambda DNA circularizes, then incorporates into the bacterial chromosome by a crossover, similar to the conversion of an F plasmid into an H ...
Ch 5.3 Lecture #1
Ch 5.3 Lecture #1

... I. DNA Replication B. The steps of DNA Replication 1. Separation of Strands- Enzyme unzips the DNA (breaks the hydrogen bonds) 2. Free Base Pairing- Free nucleotides pair up with the exposed nitrogen bases on the two half DNA strands 3. Base Bonding- Another enzymes zips the hydrogen bonds together ...
Genetic Technology
Genetic Technology

... Genetic Engineering • Under the genetic engineering flap write the following definitions and examples • Method of cutting DNA from one organism and inserting the DNA fragments into a host organism of the same or different species. • Scientist use Ecoli bacteria to make expensive Die for blue Jeans ...
MUTATIONS
MUTATIONS

... - alters codon changing it to a STOP codon and only part of the protein is translated - lead to non-functional proteins ...
Unit 1: Cells - Loudoun County Public Schools
Unit 1: Cells - Loudoun County Public Schools

... a) DNA is a macromolecule (polymer) made up of repeating subunits called nucleotides (monomers). a) There are 4 DNA nucleotides:adenine (A), guanine (G), thymine (T), cytosine (C). b) The genetic code is the sequence of DNA nucleotides. c) DNA is a double-stranded molecule. The strands are connected ...
Transcription and Translation
Transcription and Translation

... etc.)  I.e. difference in enzymes (make different amounts of molecules)  I.e. difference in antibodies (some get sick more often or from different things) ...
Chapter 12 - gontarekapbio
Chapter 12 - gontarekapbio

... introns, they can’t remove them from a foreign DNA insert when making the mRNA. cDNA is used to clone human genes This technique also helps us to see what part of the original gene is intron and what is exon. We can now compare original gene (introns and exons) vs. the ...
DNA quantification
DNA quantification

... •Calculate how much to use in reaction or on gel •Determine whether isolation was successful •Determine whether DNA is clean enough to use. DNA easily dissolves in aqueous solutions. However, at high concentrations (10 mg/ml and above), dissolved DNA is viscous. At lower concentrations, one cannot d ...
Topic 4: Genetics (15 hours)
Topic 4: Genetics (15 hours)

... Describe the application of DNA profiling to determine paternity and also in forensic investigations. ...
Chapter 8 Microbial Genetics
Chapter 8 Microbial Genetics

... • Most genes code for proteins • tRNA, rRNA • Genes are passed on from one cell to another – one generation to another • DNA has to be replicated • DNA is a long molecule • E.coli chromosome has 4 million base pairs (nucleotides) • DNA is replicated segment by segment ...
Chapter 18 notes
Chapter 18 notes

...  Viruses may damage or kill cells by causing the release of hydrolytic enzymes from lysosomes  Some viruses cause infected cells to produce toxins that lead to disease symptoms  Vaccines are (usually) harmless derivatives of pathogenic microbes that stimulate the immune system to mount defenses a ...
powerpoint notes
powerpoint notes

... Where are proteins built? ...
Genetic Engineering
Genetic Engineering

... Recognize some of the basic strategies and methods of gene manipulation and analysis.  Identify representative examples of the applications of DNA technology.  Be prepared to discuss the implications of ...
Chapter 17 and 19
Chapter 17 and 19

... a change in the base sequence of DNA blockage of the ribosome-binding sites decreased permeability of the nuclear envelope a reduction in the number of tRNA molecules available for protein synthesis 10. A gene is usually _____. the same thing as a chromosome the information for making a polypeptide ...
DNA and Protein Synthesis Review Worksheet 1. Describe the
DNA and Protein Synthesis Review Worksheet 1. Describe the

... 8. Where is mRNA found? Where is tRNA found? mRNA is found in the nucleus and tRNA is found in the cytoplasm 9. How does tRNA help mRNA make a protein? (DESCRIBE THE PROCESS) tRNA brings the corresponding amino acid based off of its anticodon recognizing mRNA’s codon. 10. What is this stage called, ...
Chapter 15 Study Guide
Chapter 15 Study Guide

... Complete each statement by underlining the correct term or phrase in the brackets. 1. Cohen and Boyer revolutionized genetics by producing recombinant [DNA / RNA]. 2. In Cohen and Boyer’s 1973 experiment, genetically engineered [bacterial / human] cells produced frog rRNA. 3. Moving genes from one o ...
Key Idea 2 - Valhalla High School
Key Idea 2 - Valhalla High School

... b.) They are in a different environment so their genes are expressed differently. Genes are segments of DNA molecules. Random alteration of DNA can cause mutation___ An altered gene may be __passed_____ on to every cell that develops from it. What is a mutation? Any change in DNA What are the only k ...
DNA
DNA

... Nucleotides join together to form nucleic acid • The hydroxyl group attached to the 3´-pentose carbon of one nucleotide forms an ester bond with the phosphate of another molecule, eliminating a water molecule ...
DNA Technology
DNA Technology

... (plasmid) found in bacteria (pink). The same enzyme is then used to cut the DNA that is required (blue). The sticky ends of each will then join up (with the help of another enzyme), inserting the required gene into the plasmid. This technique has been used to put the human insulin gene into bacteria ...
Energy Transfer in Living Things (Chapter 6)
Energy Transfer in Living Things (Chapter 6)

... • 1944- Avery identified DNA as the transforming factor • 1952- Hershey and Chase confirmed Avery’s results by radioactive tagging ...
explaining the forensic use of dna to the average american
explaining the forensic use of dna to the average american

... What parts of the DNA are unique for individuals and easy to measure? It is impractical to every gene in our DNA to the genes of others. Instead what is measured are the “non-sense” genes (codes) that are between each gene. These are called restriction fragment length polymorphism or RFLP ...
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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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