• 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 molecular biology
Introduction to molecular biology

... • Proteins are coded in the genes in ADN located in the nucleus. DNA stays always in the nucleus. • Ribosomes are factories to build proteins located in the cytoplasm. mRNA carries the mesage from the nucleus to the ribosomes. There is an intermediate step called mRNA maturation in which introns are ...
Dr Anthony Isles
Dr Anthony Isles

... → Changes in encoded product (amino acid sequence) → Changes in regulatory regions that effect expression • Epigenetics influence gene expression • Epigenetic change may interact with genetic variation • Provides the molecular link between genes and ...
BIOL 105 S 2013 Practice Quiz Supp DNA
BIOL 105 S 2013 Practice Quiz Supp DNA

... Which of the following tasks is not accomplished by DNA? A) undergoes mutations that can provide variation B) provides energy for the cell C) stores information D) replicates to pass a copy to the next generation Answer B Which of the following statements is incorrect concerning deoxyribonucleic aci ...
Biotechnology
Biotechnology

... are transforming agriculture • New genetic varieties of animals and plants are being produced – A plant with a new trait can be created using the Ti plasmid ...
chromosome
chromosome

... like what color hair to have, what color eyes to have & whether to be left or right handed. ...
Chapter 21 - dewhozitz.net
Chapter 21 - dewhozitz.net

... I. How are genomes sequenced? A. older method: 3-step process B. Whole genome shotgun approach (pioneered by J. Craig Venter) C. metagenome? II. How is this information collected and accessed? Bioinformatics A. databases 1. started with 2. GenBank a. genomics b. NCBI http://researchguides.library.wi ...
UNIVERSITY OF CALICUT (Abstract)
UNIVERSITY OF CALICUT (Abstract)

... DR PG/Tabulation section/GAI ‘F’ ‘G’ sections/ GAII/GAIII/SF/FC ...
Microbial Models: Genetics of Viruses and Bacteria
Microbial Models: Genetics of Viruses and Bacteria

... • foreign DNA may be integrated into the bacterial chromosome by recombination • Progeny carry the new combination of genes • Many bacteria have suface proteins that recognize and import naked DNA from closely related bacteria species • Some bacteria may be induced to take up foreign DNA by incubati ...
Chapter 27: Bacteria and Archaea - Biology E
Chapter 27: Bacteria and Archaea - Biology E

... piece of DNA carrying an allele for pathogenicity, while in transformation, the recipient cell takes up some of a phage’s prokaryotic DNA, which does not necessarily carry an allele for pathogenicity. Also, in transformation, the recipient cell replaces its own allele with the foreign allele, while ...
A Physiological Approach to DNA Music
A Physiological Approach to DNA Music

... RNA) to store genetic information. In eukaryotes, protozoans, yeast, and bacteria, the genetic material is invariably DNA, whereas some viruses use RNA as their genetic material. DNA molecules are comprised of long chains consisting of four bases: adenine (A), cytosine (C), guanine (G), and thymine ...
PartOneAnswers.doc
PartOneAnswers.doc

... a) 1 and 4 do not complement (the total number of phage is the same as the number of wild-type recombinants), 2 will complement 1, 3 and 4 (each pairwise co-infection gives 1010 total phage), and 3 will also complement all other mutants (1, 2 and 4). Thus mutants 1 and 4 are in the same complementat ...
Histone depleted metaphase chromosomes Scaffold Attachment
Histone depleted metaphase chromosomes Scaffold Attachment

Transcription - Effingham County Schools
Transcription - Effingham County Schools

... reference material back on the shelf so that others can use it too. Can you imagine if DNA was physically lost? That’s why chromosomes never leave the nucleus. ...
Slide 1
Slide 1

... • Previously it was predicted that active genes would be located at the surface of chromosome territories. • Now, it appears that they are also in the interior • Some are also found on loops outside of the territory ...
Basic Genetics Notes
Basic Genetics Notes

... • Genes are located on chromosomes • You have 23 pairs of chromosomes ...
Protein Synthesis
Protein Synthesis

... i. Gene = a segment of DNA coding for a RNA segment. These RNA segments will be used to produce a polypeptide (structural or enzymatic protein) ii. Each strand of DNA can contain thousands of genes iii. Each gene has a beginning and an end b. DNA is used as the blueprint to direct the production of ...
PROTEIN SYNTHESIS
PROTEIN SYNTHESIS

... i. Gene = a segment of DNA coding for a RNA segment. These RNA segments will be used to produce a polypeptide (structural or enzymatic protein) ii. Each strand of DNA can contain thousands of genes iii. Each gene has a beginning and an end b. DNA is used as the blueprint to direct the production of ...
Coding Potential
Coding Potential

... Finds similarity between biological sequences (DNA or Protein) Compares your favorite protein to the “non-redundant” database Shows alignment and calculates statistical significance ...
Ethidium Bromide
Ethidium Bromide

... The Establishment of Purity and the Separation of DNA Strands by Electrophoresis "Electrophoresis of DNA in agarose minigels containing ethidium bromide provides a rapid method of measuring both the quantity of DNA and its purity. Minigels are poured on 5 cm x 8 cm glass plates and sample slots are ...
Cell Cyles
Cell Cyles

... Bacterial mating or conjugation – can be achieved in bacteria that contain plasmids – small, circular dsDNA that is separate from rest of chromosome  Plasmids can replicate independently from the bacterial chromosome  F plasmid or fertility plasmid allows for ...
PowerPoint file
PowerPoint file

... Genomic Signal Processing • Genomic Signal Processing is a relatively new ...
ppt-4-dna-proteins-binding-and-ligands
ppt-4-dna-proteins-binding-and-ligands

... • Proteins including enzymes are three-dimensional and have a specific shape or conformation. • As a ligand binds to a protein binding site, or a substrate binds to an enzyme’s active site, the conformation of the protein changes. • This change in conformation causes a functional change in the prote ...
DNA Structure: Gumdrop Modeling Student Version
DNA Structure: Gumdrop Modeling Student Version

... To make one DNA molecule into two, the bonds between the bases (the rungs of the ladder) are broken by an enzyme called DNA helicase (depicted as scissors below). Once the strands are separated, newly made nucleotides can be brought in and paired up with each individual strand by another enzyme, DNA ...
Recombinant DNA Libraries
Recombinant DNA Libraries

... • Recombinant vectors are then used to transform bacteria or yeast cells . • Each transformed bacterium or yeast cell grows into a colony, or “clone,” of identical cells, each cell bearing the same recombinant plasmid. • Consider each clone a "book“ in this "library" of DNA fragments ...
Chap 8 Recombinant DNA technology Fall 2012
Chap 8 Recombinant DNA technology Fall 2012

... – Medical diagnosis – Patient specimens can be examined for presence of gene sequences unique to certain pathogens ...
< 1 ... 380 381 382 383 384 385 386 387 388 ... 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