• 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
achondroplasia
achondroplasia

... not inherited but results from a new mutation (change) that occurred in the egg or sperm cell that formed the embryo. The parents of children with achondroplasia resulting from new mutations are usually normal-sized. Typically, these parents have no other children with achondroplasia, and the chance ...
Book 12 Chapter 34 - From The Mountain Prophecies
Book 12 Chapter 34 - From The Mountain Prophecies

... put many things into one’s body; and the only sensation will be a slight “knock”, a slight “bump” to the flesh, or the sensation of one’s flesh moving or crawling! I can assure you, my Dear Ones, that 99.9999% of the victims will soon dismiss what they have sensed; and being no wiser, go on with the ...
Transcription | Principles of Biology from Nature Education
Transcription | Principles of Biology from Nature Education

... How do scientists determine which DNA sequences are bound by transcription factor proteins? Protein-DNA interactions are important for transcription, DNA replication, and many other biological processes, and it is important to understand where along the DNA the protein is binding. One of the laborat ...
Lack of biological significance in the `linguistic features` of
Lack of biological significance in the `linguistic features` of

... therefore, the claimed novelty of the results was not appreciated. (ii) The oligonucleotide frequency distribution in noncoding DNA does not appear to fit Zipf’s law any better than does the distribution in coding regions; additionally the presented log–log plots display a nonlinear, rather than a l ...
The key to life at the atomic level
The key to life at the atomic level

BIOTECH FALL FINAL review16
BIOTECH FALL FINAL review16

... 25. What are 3 differences between DNA and RNA? 26. Explain what an RFLP is how it is used to diagnose sickle cell anemia. 27. Draw a simple sickle cell gel and explain what the bands represent. 28. What are RFLP’s used for? 29. Explain the role of restriction enzymes in an RFLP. Be sure to understa ...
BLAST
BLAST

... (20 aa and a terminator), the information is sharpened up considerably. The 'wrongframe' information is discarded, and third-base degeneracies are consolidated. All in all, the signal-to-noise ratio is greatly improved for the specific purpose of identifying protein relatives. It is accepted that co ...
PLoS One
PLoS One

... damage. This is seen clearly in both the viability of plants carrying knockouts for key recombination and DNA repair genes, which are lethal in vertebrates, and in the impact of telomere dysfunction. Telomerase knockout mice show accelerated ageing and severe developmental phenotypes, with effects o ...
03g - Protein Synth other roles of DNA
03g - Protein Synth other roles of DNA

... via its anticodon to complementary mRNA sequence (codon) at the A site on the ribosome. ...
Name that Gene
Name that Gene

... Background: The NCBI contains a database of genes from multiple organisms that have been sequenced and identified. The work of a number of scientists across a wide variety of research areas provides the information compiled in this database. The tool used in this activity is BLAST - Basic Logical Al ...
Genes: Structure, Replication, and Mutation
Genes: Structure, Replication, and Mutation

... 7. Most bacterial genes have at least four major parts, each with different functions: promoters, leaders, coding regions, and trailers. 8. Mutations are stable, heritable alterations in the gene sequence and usually, but not always, produce phenotypic changes. Nucleic acids are altered in several d ...
An homologous pair of chromosomes…
An homologous pair of chromosomes…

INSULIN H - SEDICO Pharmaceutical Company
INSULIN H - SEDICO Pharmaceutical Company

... Insulin is one of the most important life‐saving products for diabetic patients especially  those of Type 1 diabetes mellitus  It is very important for diabetic patient to have his insulin therapy at anytime without any  interruption otherwise his life will be in a true threat. This irregular availa ...
Ends-out, or replacement, gene targeting in Drosophila
Ends-out, or replacement, gene targeting in Drosophila

... the w⫹ offspring (10 of 1,154 from 22 vials counted ⫽ 0.9% of all w⫹ progeny), although we expected them to be quite frequent as a result of excision and loss of y⫹. One possible explanation supposes that repair of the cut chromosomal ends is very inefficient, and although targeting may have occurre ...
Sequence Information Encoded in DNA that May Influence Long
Sequence Information Encoded in DNA that May Influence Long

... structures than by using individual 100 kb windows. We next examined Ensembl annotations in the 300 kb regions taken from the center of each signal-rich and signal-poor region. It is plausible that $300 kb regions that are not transcribed in any cell type may have different chromatin structures from ...
Different physical delivery systems: An important approach for
Different physical delivery systems: An important approach for

... DNA encoding EGFP gene revealed that the gene gun is more efficient in producing fluorescent fibres. In addition, administration of plasmid DNA showed that the gene gun generated high immune responses (~100-fold) compared to intramuscular injection per unit transfected DNA [36]. A major reason for t ...
NZY Reverse Transcriptase
NZY Reverse Transcriptase

... Transcriptase purified from Escherichia coli. The enzyme has been modified in order to promote stability. NZY Reverse Transcriptase synthesizes the complementary DNA strand in the presence of a primer using either RNA (cDNA synthesis) or single-stranded DNA as a template at temperatures up to 50 °C. ...
The use of amplified fragment length polymorphism (AFLP) in the
The use of amplified fragment length polymorphism (AFLP) in the

video slide
video slide

... Concept 17.2: Transcription is the DNA-directed synthesis of RNA: a closer look • Transcription, the first stage of gene expression, can be examined in more detail • RNA synthesis is catalyzed by RNA polymerase, which pries the DNA strands apart and hooks together the RNA nucleotides • RNA synthesi ...
Robust Genome Editing in Stem Cells Using CRISPR
Robust Genome Editing in Stem Cells Using CRISPR

... effective for generating disease models for both monogenic and complex genetic disorders. For successful genome editing and downstream application of iPSCs, many factors need to be considered, such as choice of growth media, extracellular matrix, genome editing tools, and nucleic acid (NA) delivery ...
Two-Dimensional DNA Gel Electrophoresis Mapping: a Novel
Two-Dimensional DNA Gel Electrophoresis Mapping: a Novel

... molecular-based methods such as denaturing gradient gel electrophoresis (DGGE) and terminal restriction fragment length polymorphism (T-RFLP) analysis achieve a low-resolution display of bacterial DNA fragments on a gel. To improve the resolution, a novel two-dimensional DNA gel electrophoresis (2-D ...
A Tn 10-lacZ-kanR-URA3 Gene Fusion Transposon for Insertion Mutagenesis and Fusion Analysis of Yeast and Bacterial Genes.
A Tn 10-lacZ-kanR-URA3 Gene Fusion Transposon for Insertion Mutagenesis and Fusion Analysis of Yeast and Bacterial Genes.

... target plasmid are isolated as follows. First, a X phage vehicle carrying the transposon is infected into an suo E. coli strain harboring the desired pBR322-derived target plasmid and a compatible pACYC 184 plasmid that produces T n 10 transposase protein. When infected cells are plated on kanamycin ...
PPP Master Mix without MgCl2 - Top-Bio
PPP Master Mix without MgCl2 - Top-Bio

... qPCR 2x SYBR Master Mix is dedicated for qPCR with quantification of the DNA amplicons with fluorescent DNA dye SYBR Green I. ...
Chapter 5 Gases - Annmarie Kotarba | Nurse, Teacher and
Chapter 5 Gases - Annmarie Kotarba | Nurse, Teacher and

... • Transcriptional-level control predominates, but control at other levels of gene expression is also very important, especially in multicellular organisms • In many instances, pre-formed enzymes and other proteins are rapidly converted from an inactive to an active state • In multicellular organisms ...
Supporting information S1.
Supporting information S1.

... E.coli K12 MG1655 coding for a putative membrane protein). None of these genes is related to MRS functioning. To clone this chromosomal sequence, a PCR fragment was amplified from the genome of S. typhimurium LT2end-1, using primers StySmaI and Sty (Table S1), and the PCR product was cloned into pla ...
< 1 ... 97 98 99 100 101 102 103 104 105 ... 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