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Slide 1
Slide 1

... 12.11 The analysis of genetic markers can produce a DNA profile  DNA profiling is the analysis of DNA fragments to determine whether they come from the same individual. DNA profiling – compares genetic markers from noncoding regions that show variation between individuals and ...
DNA, RNA, and the Flow of Genetic Information
DNA, RNA, and the Flow of Genetic Information

... currency and as molecular signals. Consequently, it is important to be familiar with the nomenclature of nucleotides and their precursors. A unit consisting of a base bonded to a sugar is referred to as a nucleoside. The four nucleoside units in RNA are called adenosine, guanosine, cytidine, and uri ...
introduction1
introduction1

... • A child always inherits one copy of each chromosome from each of the parents (meiosis, Mendel’s fist law) • Any deviation from this can be pathogenic, e.g. Turner syndrome (only one X) and Downs syndrome (3 copies of chr 21) • A girl has two X chromosomes (one from each parent), a boy one X and on ...
LLog3 - CH 3 - Immortal Genes
LLog3 - CH 3 - Immortal Genes

... believed to form the Archaea kingdom by themselves. Secondly, there was a finding within Brock’s Thermus aquaticus bacteria. Apparently, there is an enzyme that can copy DNA in extremely hot temperatures. This find ended up practically revolutionizing the amount of DNA information available to us in ...
DNA barcoding in medicinal plants: Testing the potential of a
DNA barcoding in medicinal plants: Testing the potential of a

... • An ideal DNA barcode should meet the following criteria: 1. The inter-specific genetic variability and differentiation is obvious, and the intra-specific divergence is inconspicuous; 2. The sequence is short enough and easy to be amplified and sequenced; 3. The candidate DNA barcode should have co ...
From DNA to Proteins
From DNA to Proteins

... • As the RNA polymerase moves down the DNA strand it opens up the DNA to allow the RNA to be built. • As the DNA exits the RNA polymerase the two strands of DNA are joined back together and the RNA is disjoined from the DNA. • The new RNA strand is pushed out a different opening from the double stra ...
Variation and Inheritance
Variation and Inheritance

... individuals of the same species by collecting and analysing data and know that variation may be due to environmental or genetic causes. Understand that variation may be continuous or discontinuous. ...
Designing and making sgRNA constructs
Designing and making sgRNA constructs

... 5'-TAATACGACTCACTATAGGGN18-20 -3' 5'- AAAAGCACCGACTCGGTGCC -3’ ...
DNA - Hermantown
DNA - Hermantown

... region of gene • RNA polymerase unwinds and separates the two strands of DNA • RNA polymerase adds complementary RNA nucleotides • RNA polymerase reaches a sequence of nucleotides on the gene that signals “stop” • RNA polymerase detaches ...
PCR and diagnostics II
PCR and diagnostics II

... • 2 short oligonucleotides that are complimentary to one of the 2 native DNA strands are synthesised • Probe X has as its last base at the 3’ end the nucleotide that is complimentary to the normal sequence. It does not hybridize well to the mutant sequence as there is a mismatch • Run test sample ne ...
WIPO Open Forum on the Draft Substantive Patent Law Treaty (SPLT)
WIPO Open Forum on the Draft Substantive Patent Law Treaty (SPLT)

... Court of Appeals • Majority Lourie opinion – focus on eligibility as novelty alone -- structural differences and covalent bond-breaking as distinguishing “isolated sequences” and cDNA from products of nature and “purified” chemicals • Moore concurrence – focus on function rather than mere novelty o ...
Diapositive 1
Diapositive 1

... Nuclear bases can be incorporated by oocyte and preimplantation embryos (Σ Nucleosides) The nucleotide pool sanitization enzymes are the first defences against mutagenesis, and the human oocyte is well equipped with NUDT (nucleoside diphosphate linked moiety X), the major enzyme involved (Removal of ...
Powerpoint notes for chapter 17
Powerpoint notes for chapter 17

... •The two original strands of DNA are shown in yellow (light); newly synthesized DNA is blue (dark) • Conservative replication would leave intact the original DNA molecule and generate a completely new molecule. • Dispersive replication would produce two DNA molecules with sections of both old and ne ...
in Silico Primer Design and Simulation for Targeted
in Silico Primer Design and Simulation for Targeted

... n Designed to only amplify one specific region of DNA with as few primers and no overlapping amplicons. ...
Key for Exam 1 Part 1 - Evolutionary Biology
Key for Exam 1 Part 1 - Evolutionary Biology

... 10. How many heart chambers should we expect that Archaeopteryx to have? (A) one (B) two (C) three (D) four (E) five 11. Radioactive dating puts the age of the earth at (A) 6,000 years ago (B) 10,000 years ago (C) 28 million years ago (D) 13.7 billion years ago (E) none of the above 12. What kind of ...
Science Media Centre Fact Sheet Genome editing
Science Media Centre Fact Sheet Genome editing

... Once a break is made in the genome at the desired position the DNA repair mechanisms of a cell are triggered which can be harnessed to make the desired changes via two mechanisms: Homologous Recombination involves introducing a DNA fragment as a template for repair which contains the desired genetic ...
Exam #3 Review
Exam #3 Review

... Exam #3 Review Exam #3 will cover from the last portion of Lecture 14 through the first portion of Lecture 21 as specified in class. This includes regulation of gene expression, bacterial genetics, antibiotics, viruses, and taxonomy. As always, it is best to begin by studying your notes and then aft ...
Annotation of Five Genes in the DNA Mismatch Repair Pathway of
Annotation of Five Genes in the DNA Mismatch Repair Pathway of

... Kyoto Encyclopedia of Genes and Genomes (KEGG) is a database that has pathway maps which show where specific genes/proteins are involved. It was accessed with http://www.genome.jp/kegg/pathway.html. MetaCyc is another pathway database which stores pathways that have been experimentally evaluated. Th ...
Table 3.1. List of suppliers of restriction enzymes. Name of
Table 3.1. List of suppliers of restriction enzymes. Name of

... may be less or more than the required size or may have more than two cos sites of many small fragments of foreign DNA. Those having the range of viral head can be packed in vitro using a preparation of head and tail proteins. The viruses thus constructed are allowed to multiply in E. coli. Developme ...
Past History of the Retson Family based on DNA evidence Written
Past History of the Retson Family based on DNA evidence Written

... the objects of raiding parties, rape, and being used for cementing relationships between groups. As a result, they tend to diffuse in location and show fewer subgroups. That said, the H haplogroup is by far the most common mtDNA group in Europe and virtually all Europeans belong to it or its derivat ...
modification of gene expression
modification of gene expression

... Genes differentially turned on and off … • During various stages of organismal development • During various stages of a cell’s lifecycle • In response to environmental changes (e.g. metabolism, infection) • As a result of variation and modification of a gene’s nucleotide sequence • As a result of mo ...
dnachap12_12-3
dnachap12_12-3

... Mendel/flower images from: http://www.emc.maricopa.edu/faculty/farabee/BIOBK/BioBookTOC.html Blood cell by Riedell ...
Chromosomes
Chromosomes

... • http://www.youtube.com/watch?v=K0ZP8V txUZ0&playnext_from=PL&feature=PlayLi st&p=91845E3E72841AFE&index=8 ...
What is biochemistry?
What is biochemistry?

... DNA – the blueprint of life Biochemistry also allows us to decode the genetic information found in our DNA. Genes are small sections of DNA that code for a particular sequence of amino acids which, in turn, form specific proteins. By decoding the information in DNA, we can identify particular genes ...
Thermo Scientific Top Vision Low Melting Point Agarose
Thermo Scientific Top Vision Low Melting Point Agarose

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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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