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Topic 10: « MODERN METHODS OF DNA DIAGNOSIS OF
Topic 10: « MODERN METHODS OF DNA DIAGNOSIS OF

... called DNA polymerase. This enzyme makes the complementary strand by finding the correct base through complementary base pairing, and bonding it onto the original strand. As DNA polymerases can only extend a DNA strand in a 5′ to 3′ direction, different mechanisms are used to copy the antiparallel str ...
Lin-12(+)
Lin-12(+)

... example the “no phenotype” situation with 40% of the yeast genes) are due to functional redundancy provided by duplicated genes A: Yes B: No C: do not have a clue ...
information transfer in life - The Origin and Evolution of Life
information transfer in life - The Origin and Evolution of Life

... periods. Every sentence must start with the same word. This chapter will start with a simple system based on coin tosses and show how coin tosses can be used to store and transmit information. This simple example will then be improved by using a four sided coin. The trapped scientist will then be us ...
benzer 15 kb benzer
benzer 15 kb benzer

... distance he found was 0.01%. Benzer concluded this must be the distance between adjacent mutations, this is actually the distance between base pairs in DNA. The genetic mapping of the rII region was a leap forward in our understanding of genetics, however the problem still remained that it was not ...
- Career Point Kota
- Career Point Kota

... Martha Chase (1952). They worked with viruses that infect bacteria called bacteriophages. The bacteriophage attaches to the bacteria and its genetic material then enters the bacterial cell. The bacterial cell treats the viral genetic material as if it was its own and subsequently manufactures more v ...
PPT File
PPT File

... (b) Novel contigs not present in the reference assembly (red) but detected among clone pool–derived reads (light blue, purple, yellow) are anchored by searching for positions in the reference common to those pools but missing from most or all other pools. This approach anchors 1,733 recently reporte ...
Replication - UniMAP Portal
Replication - UniMAP Portal

... Termination of translation should not be confused with termination of transcription. The polypeptides released at termination may function alone as proteins, or they may function together in quarternary protein structures. ...
click here
click here

... heterozygoes; the child has inherited a mutant allele from one parent, and a wild type allele from the other parent, so the fetus is also a heterozygote: The fetus, therefore is phenotypically normal, but can pass the disease allele on to his progeny. Within the general population, however, the freq ...
7.014 Problem Set 3
7.014 Problem Set 3

... that you studied (M, I and T) back to MIT with you so you can investigate them further. From your initial experiments characterizing how the species obtain energy (Problem Set 1), you noticed that the two autotrophs are capable of surviving in the absence of CO2 if glucose is provided. This suggests ...
DNA Histone Model - Teach Genetics (Utah)
DNA Histone Model - Teach Genetics (Utah)

... • Methyl and acetyl are epigenetic tags- chemicals that act as “switches “ that determine gene expression without changing the underlying genetic code. Epigenetic tags turn genes on or off in response to cell signals, creating a dynamic layer of control called the epigenome. • Enzymes play an impo ...
RNA and protein synthesis
RNA and protein synthesis

... instructions from DNA and assemble the protein amino acid by amino acid ...
Gene Transfer
Gene Transfer

... bacteria. The looping out of DNA could occur by homologous recombination within the chromosome between adjacent copies of tandemly integrated DNA. Tandem integration events are known to occur during biolistic transformation of plant cells. The entire plasmid could be reconstituted, although genetic ...
Identification of Different Meat Species by the Agilent Fish ID
Identification of Different Meat Species by the Agilent Fish ID

... tissue samples using the Agilent DNA Isolation kit provided as part of the Fish ID solution. Two independent DNA samples for each of the meat tissues were used in the PCR together with the salmon positive control DNA supplied by the kit and a no template control. The results of the PCR reactions wer ...
Evolutionary Genetics
Evolutionary Genetics

... though there were 54 differences between the species. By contrast, other genes from the same individuals showed normal levels of polymorphism. Berry et al (1991) argued that recent selective sweeps in both species may have eliminated most of the polymorphism on the fourth chromosome. If there is ove ...
Mossbourne Community Academy A
Mossbourne Community Academy A

chapter 19 the organization and control of eukaryotic genomes
chapter 19 the organization and control of eukaryotic genomes

... Eukaryotic genes also have repressor proteins to inhibit expression of a gene. ° Eukaryotic repressors can cause inhibition of gene expression by blocking the binding of activators to their control elements or to components of the transcription machinery or by turning off transcription even in the p ...
Document
Document

... in highly condensed structure called nucleoids. The mtDNA of most cells does not reside in a single location. 2. The number of mitochondria, nucleoids, and mtDNA molecules are variable. The mechanisms are not yet understood. 3. Mitochondria can fuse with each other as well as divide. ...
No Slide Title
No Slide Title

... is thought to be caused by horizontal gene transfer and also inversions around the origin of replication ...
3.PROTEIN SYNTHESIS overview
3.PROTEIN SYNTHESIS overview

... The same genetic code is used for translation in every organism from bacteria to mammals It’s universality is powerful evidence that evolution of the code happened ________________________________________________ _______ amino acids found in proteins are coded for by _____ different bases of RNA 3 n ...
Genotypic Frequency of Calpastatin Gene in Lori Sheep By PCR-RFLP Method
Genotypic Frequency of Calpastatin Gene in Lori Sheep By PCR-RFLP Method

... and in skeletal muscle. Calpastatin is expressed at a higher level of activity then the calpains themselves. Of the five domains, the N-terminal leader (L) domain does not appear to have any calpains inhibitory activity, but maybe involved in targeting or intracellular localization (Takano et al. 19 ...
Sex Determination using Polymerase Chain Reaction
Sex Determination using Polymerase Chain Reaction

... should be difficult to detect on agarose gel if region smaller than 200bp and amplification should be not proper if strength is higher [1]. The sequence of the primer is also very important [1]. Two primers same in base composition and in length, it means two primers should be similar annealing temp ...
EVALUATION OF INVESTIGATOR® STR GO! LYSIS BUFFER FOR
EVALUATION OF INVESTIGATOR® STR GO! LYSIS BUFFER FOR

DNA
DNA

...  Error rate after proofreading repair is low but not zero  Sequence changes may become permanent and can be passed on to the next generation  These changes (mutations) are the source of the genetic variation upon which natural selection operates ...
RNA & Transcription
RNA & Transcription

... The parts of the primary transcript called introns are cut out. Introns appear to match noncoding regions of DNA. In order for this to happen, “Snurps” (snRNA & Protein complexes) bind to form spliceosome to cut out the introns, ...
Chapter 4: DNA and Chromosomes
Chapter 4: DNA and Chromosomes

... Genes carry biological info that must be copied accurately for transmission to next generation ea time cell divides DNA encodes info through order or sequence of nucleotides Organisms differ because of respective DNA which encodes different biological messages ...
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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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