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BIOL 1107 - Chapter 17
BIOL 1107 - Chapter 17

... DNA sequence (usually protein-encoding) -Sometimes called gene cloning The most flexible and common host for cloning is E. coli Propagation of DNA in a host cell requires a ...
Chp. 3, Section E: How Does a Genetic Counselor Detect Mutant
Chp. 3, Section E: How Does a Genetic Counselor Detect Mutant

... DMD can result from any one of a variety of mutations in the gene coding for dystrophin, an important structural protein in the muscle, heart, and brain. (Dystrophin’s essential role in the brain is pointed to by the fact that patients with DMD often show a decline in IQ scores as the disease progre ...
Ch. 13 Bioengineering
Ch. 13 Bioengineering

... – Differences in “polymorphic regions” between the genes on the DNA. ...
Structure of Nucleic Acids
Structure of Nucleic Acids

... functioning of all known living organismswith the exception of some viruses. The main role of DNA molecules is the long-term storage ofinformation. DNA is often compared to a set of blueprints, like a recipe or a code, since it contains the instructions needed to construct other components of cells, ...
SCAG (02/06) 03 Inadvertent transgenesis by conventional
SCAG (02/06) 03 Inadvertent transgenesis by conventional

... only from the washing medium and fresh sperm (washed in a Percoll gradient) ...
About DNA Ligase The term ligase comes from the latin ligare
About DNA Ligase The term ligase comes from the latin ligare

Chapter 5
Chapter 5

... Answer: By using a probe specific for the DNA of interest, the clone can be identified. The probe is designed to hybridize to the DNA of the clone that has been transferred to a membrane. The probe is labeled with radioactivity or another tag so that it can be easily detected and the proper clone id ...
-u o DNA RECOVERY METHOD COMPARISON from BLACK
-u o DNA RECOVERY METHOD COMPARISON from BLACK

How DNA Evidence Works The Science of DNA Fingerprinting
How DNA Evidence Works The Science of DNA Fingerprinting

... determine the number of VNTR repeats at a number of distinctive loci to come up with an individual's DNA profile. Here is the key to DNA evidence: If you are looking at a particular person's DNA, and a particular VNTR area in that person's DNA, there is going to be a certain number of repeats in tha ...
The Polymerase Chain Reaction (PCR) provides an extremely
The Polymerase Chain Reaction (PCR) provides an extremely

DNA
DNA

... 2.12.DNA strands can separate and reassociate (denaturation and Renaturation) Native: the normal structure of a nucleic acid in nature. Denaturation (Melting,熔解): A process of the hydrogen bonds in DNA were broken which cause the two strands separate. ----heat, high pH, etc Renaturation (Anneali ...
Use of paper chromosomes: Illustration of meiosis and crossing over
Use of paper chromosomes: Illustration of meiosis and crossing over

... pairs. This represents the events metaphase and anaphase of meiosis I. 9. Finish meiosis I by placing string around the chromosome sets to illustrate the fact you have two cells. Note: you formed two cells but note that you don’t reform a nuclear membrane. You should have one doubled chromosome in e ...
Prodigiosin Production in E. Coli
Prodigiosin Production in E. Coli

Printable version - Chromosome 18 Registry and Research Society
Printable version - Chromosome 18 Registry and Research Society

... these chromosomes is done by a highly skilled professional technician, who first makes sure there are no extra or missing chromosomes, and also determines if any bands are missing, added or rearranged. However, in each one of these chromosomes there are hundreds of genes. There are over 300 genes on ...
Class 11
Class 11

... These complexes affect the interaction of DNA with the nucleosomes – opening the DNA for access by other factors ...
Recombinant Paper Plasmids:
Recombinant Paper Plasmids:

... enzymes, BamHI and HindIII. You will ligate together fragments that come from each plasmid, creating a pAMP/KAN plasmid. 1. First, simulate the activity of the restriction enzyme BamHI. Reading from 5’ to 3’ (left to right) along the top row of your pAMP plasmid, find the base sequence GGATCC. This ...
Bryan Fong - Angelfire
Bryan Fong - Angelfire

... We did not get the results that we expected. However, we got Kanr cells because there was growth of E. coli on the LB/ Kan agar plates. This means for the most part that the transposition was a success. From the replica plating onto the MacAra agar plates, the colonies were red indicating that the b ...
General Biology I Test V
General Biology I Test V

... A cross between two organisms that are each heterozygous for both of the characters being followed (or the self-pollination of a plant that is heterozygous for both characters). ...
Gene mapping today: applications to farm animals
Gene mapping today: applications to farm animals

... in which three characteristics are notable: 1) these repetitive sequences are able to attract specific nuclear proteins; 2) these repetitive sequences are able to develop a locus-specific, repetitive, higher order sequence structure because of their inherent possibilities of quick sequence alteratio ...
Determination of DNA Melting Temperatures in Diffusion
Determination of DNA Melting Temperatures in Diffusion

Applications of Recombinant DNA to Pathologic Diagnosis
Applications of Recombinant DNA to Pathologic Diagnosis

... or, to save space, applied as slots 2 mm wide x 5 mm long. Hybridization is carried out as for Southern blotting, and probes are detected by autoradiography. With radiolabeled probes of high specific activity, the resulting sensitivity (i.e., the smallest detectable amount) is about 0.2 to 0.5 pg (6 ...
PPT
PPT

...  DNA degraded to fragments only a few hundred base pairs in length can serve as effective templates for amplification.  Large numbers of copies of specific DNA sequences can be amplified simultaneously with multiplex PCR reactions.  Commercial kits are now available for easy PCR reaction setup an ...
No Slide Title
No Slide Title

...  DNA degraded to fragments only a few hundred base pairs in length can serve as effective templates for amplification.  Large numbers of copies of specific DNA sequences can be amplified simultaneously with multiplex PCR reactions.  Commercial kits are now available for easy PCR reaction setup an ...
ch11dna
ch11dna

...  DNA degraded to fragments only a few hundred base pairs in length can serve as effective templates for amplification.  Large numbers of copies of specific DNA sequences can be amplified simultaneously with multiplex PCR reactions.  Commercial kits are now available for easy PCR reaction setup an ...
Table II Transformation of various derived strains OSU  Strain Outcrossed with
Table II Transformation of various derived strains OSU Strain Outcrossed with

... inl sequences leaving the expression of both inl+ and inl- genes intact. In Southern hybridization experiments, bands characteristic for covalently closed circular plasmids were detected in the DNA isolated from the F1 progeny of the transformants using the vector as a hybridization probe. (The prin ...
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Comparative genomic hybridization



Comparative genomic hybridization is a molecular cytogenetic method for analysing copy number variations (CNVs) relative to ploidy level in the DNA of a test sample compared to a reference sample, without the need for culturing cells. The aim of this technique is to quickly and efficiently compare two genomic DNA samples arising from two sources, which are most often closely related, because it is suspected that they contain differences in terms of either gains or losses of either whole chromosomes or subchromosomal regions (a portion of a whole chromosome). This technique was originally developed for the evaluation of the differences between the chromosomal complements of solid tumor and normal tissue, and has an improved resoIution of 5-10 megabases compared to the more traditional cytogenetic analysis techniques of giemsa banding and fluorescence in situ hybridization (FISH) which are limited by the resolution of the microscope utilized.This is achieved through the use of competitive fluorescence in situ hybridization. In short, this involves the isolation of DNA from the two sources to be compared, most commonly a test and reference source, independent labelling of each DNA sample with a different fluorophores (fluorescent molecules) of different colours (usually red and green), denaturation of the DNA so that it is single stranded, and the hybridization of the two resultant samples in a 1:1 ratio to a normal metaphase spread of chromosomes, to which the labelled DNA samples will bind at their locus of origin. Using a fluorescence microscope and computer software, the differentially coloured fluorescent signals are then compared along the length of each chromosome for identification of chromosomal differences between the two sources. A higher intensity of the test sample colour in a specific region of a chromosome indicates the gain of material of that region in the corresponding source sample, while a higher intensity of the reference sample colour indicates the loss of material in the test sample in that specific region. A neutral colour (yellow when the fluorophore labels are red and green) indicates no difference between the two samples in that location.CGH is only able to detect unbalanced chromosomal abnormalities. This is because balanced chromosomal abnormalities such as reciprocal translocations, inversions or ring chromosomes do not affect copy number, which is what is detected by CGH technologies. CGH does, however, allow for the exploration of all 46 human chromosomes in single test and the discovery of deletions and duplications, even on the microscopic scale which may lead to the identification of candidate genes to be further explored by other cytological techniques.Through the use of DNA microarrays in conjunction with CGH techniques, the more specific form of array CGH (aCGH) has been developed, allowing for a locus-by-locus measure of CNV with increased resolution as low as 100 kilobases. This improved technique allows for the aetiology of known and unknown conditions to be discovered.
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