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Theory of PCR and its Applications
Theory of PCR and its Applications

... • It was discovered that a type of bacterial enzyme was found to have the ability to cut DNA in a test tube. • These restriction endonucleases, cut double stranded DNA at specific sites. • In a bacterial cell, restriction endonucleases (restriction enzymes) act as a kind of immune system, protecting ...
Biotechnology
Biotechnology

... Biotechnology • Biotechnology is the manipulation of organisms or their components to make useful products • The applications of DNA technology affect everything from agriculture, to criminal law, to medical research ...
Document
Document

... 51. What is the cell cycle? 52. What are the two major phases of the cell cycle? What happens in each of these phases? 53. What is cytokinesis? 54. What is apoptosis? Why would a cell perform apoptosis? 55. What is a chromosome? 56. What is a histone? 57. Why do your cells make chromosomes from chro ...
1. There are many different views on the ethics of reproductive
1. There are many different views on the ethics of reproductive

... Which enzymes are needed to produce recombinant plasmids that are used in gene transfer? A. ...
For the 5 W`s Flipbook you need to complete tRNA and rRNA (this is
For the 5 W`s Flipbook you need to complete tRNA and rRNA (this is

... 8. Where is mRNA found? Where is tRNA found? mRNA is found in the nucleus and tRNA is found in the cytoplasm ...
Saturday Study Session 2 Theme of the day: Information Transfer
Saturday Study Session 2 Theme of the day: Information Transfer

DNA polymerase
DNA polymerase

... How can techniques developed by molecular biologists be used to answer ecological questions? Nucleic acids (DNA and RNA) are present in all calls – Bacteria, Archaea and Eukaryotes. Molecular techniques use nucleic acids to identify species and determine relationships without having to grow or cult ...
Practice Exam- KEY - mvhs
Practice Exam- KEY - mvhs

... g) If this sequence were deleted, there will not be any transcription since the promoters are not spaced correctly. RNA polymerase can’t recognize the promoters to start transcription h) a stop codon would be introduced—translation would stop too early. Incomplete protein made i) RNA Polymerase reac ...
DNA - morescience
DNA - morescience

... Ligase - “glues” Okazaki fragments together on lagging strand ...
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human oct-1 gene located on chromosome 1

... consensus sequence (ATGCAAAT), which is found as a controlling element in a number of disparate gene systems, has identified a complex set of factors with distinct expression patterns. The largest of these proteins is a generally expressed sequence-specific transcription factor that has been purifie ...
Proofreading and DNA Repair - mvhs
Proofreading and DNA Repair - mvhs

... • Replication occurs at a rate of approximately 1000 nucleotides per second • Error rate is 1/1,000,000 bases  approximately 1000 mutations every time a cell divides ...
Final Review
Final Review

... 24. How do the nitrogenous bases pair in DNA? In RNA? 25. Explain the process of DNA replication, including what enzymes are involved. 26. Explain the process of protein synthesis, including all key terminology. 27. Define transcription. 28. Define translation. 29. What happens to mRNA before it lea ...
PowerPoint
PowerPoint

... because the transcription complex can’t bind. ...
assignmentschapters16-19and11-1
assignmentschapters16-19and11-1

... to the amino acid sequence or protein produced as a result of this mutation? (Note: Position 1 refers to the first base at the 3 end of the transcribed strand. The last base in the DNA strand, at the 5 end, is at position 21.) ...
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Site Directed Nucleases (SDN) for targeted

... transgene. SDN-3 is highly beneficial for stacking several traits together so that they are inherited as a single genetic locus; this helps avoid lengthy trait introgression processes and enables efficient incorporation of traits into elite lines for the development of new varieties. Another benefit ...
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lecture1

... HaeIII and AluI cut straight across the double helix producing "blunt" ends. However, many restriction enzymes cut in an offset fashion. The ends of the cut have an overhanging piece of single-stranded DNA. These are called "sticky ends" because they are able to form base pairs with any DNA molecule ...
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... __JAMES WATSON____ & _FRANCIS CRICK_____ used _Rosalind Franklin’s X-ray images to help them figure out the structure of DNA. SUBUNIT PROTEINS ...
Frequently Asked Questions about Red/ET Cloning
Frequently Asked Questions about Red/ET Cloning

... Pilot studies have been undertaken, so far without success. Gene Bridges is studying the co-factors of Red/ET Recombination in E.coli to accomplish the goal of in vitro application. Can the recombination-specific proteins function in eukaryotic cells? Can you provide examples of successful applicati ...
Cell Cycle Quiz key
Cell Cycle Quiz key

... D. The nucleus translates the ribosomal RNA for the enzymes to be synthesized in mitochondria. 15. _____During a stage of protein synthesis, codons in mRNA molecules are used to specify the sequence of amino acids in polypeptide chains. What is this process called? A. transcription B. gene expressio ...
Mutations
Mutations

... substituted for another nucleotide in a DNA sequence Can change amino acid FRAMESHIFT MUTATIONS Result of a nucleotide being deleted or inserted into the DNA sequence Will change the remaining sequence of amino acids ...
Genetic Engineering Notes
Genetic Engineering Notes

... o A carrier molecule called a _____________must be used to deliver the therapeutic gene to the patient's target cells. o The most common vector is a ___________that has been genetically altered to carry normal human DNA. o Ex: To reverse disease caused by genetic damage, researchers isolate normal D ...
CHEM 331 Problem Set #7- Lehninger 5e, Chapter 8 Due Friday
CHEM 331 Problem Set #7- Lehninger 5e, Chapter 8 Due Friday

... What special type of sequence is contained in this DNA segment? Does the double-stranded DNA have the potential to form any alternative structures? ...
EXAM 1
EXAM 1

... 1) draw an arrow showing the direction in which each new strand of DNA would be synthesized during replication. 2) label the strand orientation (5’ and 3’) of each new strand. ...
Unit 1 DNA and the Genome Summary
Unit 1 DNA and the Genome Summary

Genomics – The Language of DNA
Genomics – The Language of DNA

... L1 activity proceeds as follows: RNA polymerase II transcribes the L1 DNA into RNA. The RNA is translated by ribosomes in the cytoplasm into the proteins. The proteins and RNA join together and reenter the nucleus. The endonuclease cuts a strand of "target" DNA, often in the intron of a gene. The re ...
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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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