• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Introduction to DNA Computing
Introduction to DNA Computing

... Recombinant DNA Technology •Cleavage DNA at specific sites by restriction enzymes,which greatly facilitates the isolation and manipulation of individual DNA. •Rapid sequencing of all the nucleotides in a purified DNA fragment, which makes it possible to determine the boundaries of a gene and the am ...
22. Oncogenes
22. Oncogenes

... Transfection of mouse fibroblasts with DNA from cancers; identify "transformed cells", cells with more cancer-like characteristics. Isolate and clone DNA for oncogene. Special trick for identifying the human oncogene from transfected mouse cells--human DNA contains Alu family repeats, mouse DNA does ...
NOVA Online Cancer Tutorial
NOVA Online Cancer Tutorial

doc Review of Lecture 27
doc Review of Lecture 27

... o Chemicals that resemble nucleotides o Can be integrated into DNA in place of nucleotides o Less stable forms than bases, shift base-pairing affinities & lead to changes o 5-bromouracil (5-BU) – causes A-T  G-C or G-C  A-T ...
Genetic Technology Discussion
Genetic Technology Discussion

...  Short fragments of DNA move faster and farther  Fragment patterns can be compared from DNA samples taken from ...
The History of Molecular Genetics
The History of Molecular Genetics

... that trait was sex-linked – Won the Nobel Prize in 1933 for his work on chromosomes and genetics ...
Microbial Genetics Part 2
Microbial Genetics Part 2

... • Recombination is the exchange of homologous genes on a chromosome. – For example, when gametes are being formed the homologous chromosomes line up side by side. When they are in close proximity similar sequences of DNA can changes chromosomes. So if the chromosomes code for eye color but on one ch ...
Abstract Dissertation Makhalova
Abstract Dissertation Makhalova

EPIGENETICS Textbook
EPIGENETICS Textbook

... – EXCEPTIONS: • Silencing on X chromosome • When cells differentiate • Pathological processes, e.g., inactivation of tumor suppressor genes in some cancers ...
AP Biology: Unit 3A Homework
AP Biology: Unit 3A Homework

... 13. Show the P, F1, and F2 generations of a cross between a homozygous gray bodied, normal winged fly and a double mutant fly. 14. Calculate the recombination frequencies. (a) A female dihybrid fly for body color and wing size is crossed with a male double mutant. They have 391 recombinant offspring ...
Amal Awwad 23 Abd Alraheem Jerdaneh st. Amman, Jordan
Amal Awwad 23 Abd Alraheem Jerdaneh st. Amman, Jordan

... Studied the formation of G-quadruplexes in more than 500 DNA and RNA aptamer sequences. Aptamers are single stranded RNA or DNA oligonucleotides that bind with high affinity and specificity to unique targets such as peptides, cells, organelles and viruses. The main purpose of the project was to stud ...
plasmid to transform
plasmid to transform

... • Allows plasmid to replicate and make copies for new cells. iii. Marker genes • Identifies cells that have been transformed.  gene for antibiotic resistance – bacteria is plated on media with an antibiotic, and only bacteria that have taken up a ...
big ideas for biology
big ideas for biology

... What is the name of the generational picture? ____________________________________ 27. DNA has four nucleotides (or bases): a. ___________________________________________________________________________ b. ___________________________________________________________________________ c. _______________ ...
13-3 Cell Transformation
13-3 Cell Transformation

Central Dogma PowerPoint
Central Dogma PowerPoint

Beginning to crack the code of `junk DNA`
Beginning to crack the code of `junk DNA`

Lecture 8: Transgenic Model Systems and RNAi
Lecture 8: Transgenic Model Systems and RNAi

... — designated Cre — that cuts its DNA into lengths suitable for packaging into fresh virus particles. Cre cuts the viral DNA wherever it encounters a pair of sequences designated loxP. All the DNA between the two loxP sites is removed and the remaining DNA ligated together again (so the enzyme is a r ...
Strain Improvement Mutation and selection
Strain Improvement Mutation and selection

... protein coat.  bind to receptors on bacteria and transfer genetic material into the cell for reproduction.  can enter a lytic cycle which leads to lysis of host cell and release of mature phage particles or they can be integrated into host chromosome as prophage and maintained (lysogeny). ...
Molecules of Genetics Questions- Use http://www.dnaftb.org/dnaftb
Molecules of Genetics Questions- Use http://www.dnaftb.org/dnaftb

... 8. How does a retrovirus carry out the process of infection? 9. What type of enzyme is necessary for reverse transcription to take place? 10. From the PROBLEM section: How can a viral vector be a useful tool in research? #26. RNA was the first genetic molecule. ...
Genetics
Genetics

... A male dog has curly hair and the female dog has straight hair. Curly is dominant to straight. If the dogs have 2 puppies with straight hair and 2 with curly hair, what are the parents’ genotypes? ...
Gene Expression and Regulation
Gene Expression and Regulation

...  Changes only one amino acid (if any!) ...
chapter review answers
chapter review answers

... 3. Explain the process of replication. When a DNA molecule is replicated, how do the new molecules relate to the old molecule? DNA separates into two strands, then produces two new complementary strands following the rules of base pairing. Each new strand of DNA is an EXACT copy of the original stra ...
flyer
flyer

... ­information available to determine the d ­ iagnosis. Moreover, there is no time to order multiple specific tests. Even with adult patients, a prompt diagnosis can be essential to save the patient’s life. ...
Gene Technology
Gene Technology

...  Where do you “paste” the cut DNA?  Vector- an agent used to carry the desired gene into another cell.  Plasmid- type of vector; circular DNA molecule found in ...
Bacteria and Recombinant DNA
Bacteria and Recombinant DNA

... Fertility-(F-)plasmids, which contain only tra-genes. Their only function is to initiate conjugation. Resistance-(R-)plasmids, which contain genes that can build a resistance against antibiotics or poisons. Col-plasmids, which contain genes that code for (determine the production of) colicines, prot ...
< 1 ... 609 610 611 612 613 614 615 616 617 ... 766 >

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.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report