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7.1 Techniques for Producing and Analyzing DNA
7.1 Techniques for Producing and Analyzing DNA

genetic engineering and biotechonology
genetic engineering and biotechonology

... DNA fragments produced using restriction enzymes may be reassembled by a process called ligation. Pieces of DNA are joined together using an enzyme called DNA ligase. DNA of different origins produced in this way is called recombinant DNA because it is DNA that has been recombined from different so ...
Manipulating DNA - Emerald Meadow Stables
Manipulating DNA - Emerald Meadow Stables

VGEC: Student Notes RESTRICTION ENZYME MAPPING OF THE λ
VGEC: Student Notes RESTRICTION ENZYME MAPPING OF THE λ

... VGEC: Student Notes RESTRICTION ENZYME MAPPING OF THE λ (lambda) PHAGE GENOME This is a paper exercise where you will use images of restriction enzyme digestion data to construct a physical map of the phage lambda genome. ...
Plant Speciation REVIEW
Plant Speciation REVIEW

... environment (extrinsic isolation). Current challenges are to estimate the relative contribution of different reproductive barriers in limiting gene flow among contemporary populations and to determine the order and speed with which they arose. All else being equal, early-acting reproductive barriers ...
AP Biology Double helix structure of DNA
AP Biology Double helix structure of DNA

...  Replication of DNA base pairing allows each strand to serve as a template for a ...
Manipulating DNA
Manipulating DNA

BLAST_tutorial
BLAST_tutorial

... – Search for sequence similarity matches in the Gramene database. – Select the best target database for your search. – Choose the best algorithm for your search. – Fine-tune search parameters. ...
Lecture 9 Database Searching Database Searching for Similar
Lecture 9 Database Searching Database Searching for Similar

... • Easier to identify protein families by sequence similarity rather than structural similarity. (same structure does not mean same sequence) • Use the appropriate gap penalty scorings • Evaluate results for statistical significance. ...
Biology 164 Laboratory Introduction to Bioinformatics and Molecular
Biology 164 Laboratory Introduction to Bioinformatics and Molecular

... three files that were written by Clustalx. The file with the .aln extension is the sequence alignment file. It can be opened by Clustalx if you would like to see the aligned sequences again. The files with the .dnd extension and with .ph extension are genetic distance files formatted for use by soft ...
Oaks: a ‘worst case scenario for the biological species
Oaks: a ‘worst case scenario for the biological species

agarose gel - Bio
agarose gel - Bio

... interest were excised from the agarose gel with the PickO™ gel exciser. The tool was positioned above the fragment by looking through the hole in PickO™. The tool was pressed through the gel and the gel piece was picked up by rotating and bending the PickO™. The gel piece was transferred to the micr ...
DNA and Forensic Science
DNA and Forensic Science

... of a particular assay to be confident in the differences between samples, whereas with RFLP a relatively high level of confidence in discriminating between samples was easier to come by). 4. Essentially, amplification is valuable because it allows for scientists to draw more DNA out of a smaller pie ...
Quantification of nucleic acids
Quantification of nucleic acids

... Methods for nucleic acids quantification in environmental samples are normally based on spectrofluorometry. When analyzing impure samples containing humic material, autofluorescence has to be measured and subtracted from the nucleic acid specific fluorescence. It is also recommended to use a known amount ...
Figure 1 - genomics-lab
Figure 1 - genomics-lab

... f. Microsatellites or SSR Markers In 1989, Weber & May and Litt & Luty discover microsatellite sequences, demonstrate their high level of polymorphism due to variations in the number of tandem repeats (1 - typical heterozygosities in cattle), abundance and even distribution across the genome. Micros ...
recBCD
recBCD

Recombinant DNA technology
Recombinant DNA technology

... • Methods used to join together (recombine) different DNA segments that are not found together in nature. • This technique is used in genetic analysis to serve several applications: ...
MITOCHONDIAL GENETICS
MITOCHONDIAL GENETICS

... DNA polymerase can add free nucleotides to only the 3 end of the newly-forming strand. This results in elongation of the new strand in a 5'-3' direction. No known DNA polymerase is able to begin a new chain (de novo). DNA polymerase can add a nucleotide onto only a preexisting 3'-OH group, and, ther ...
File
File

... • Methods used to join together (recombine) different DNA segments that are not found together in nature. • This technique is used in genetic analysis to serve several applications: ...
view PDF
view PDF

... colonies from the immediately dissected termites, 12 % of enumerated colonies from the laboratory-reared termites maintained on a wood diet and 19 % of enumerated colonies from the laboratory-reared termites maintained on a filterpaper diet. Each of the irregular rod-shaped bacteria tested from the ...
Dangerous Ideas and Forbidden Knowledge, Spring 2005 Lab 2
Dangerous Ideas and Forbidden Knowledge, Spring 2005 Lab 2

... of DNA for a variety of purposes including gene mapping, cloning, DNA sequencing and gene detection. The objective of PCR is to produce a large amount of DNA in a test tube starting from only a trace amount. A researcher can take trace amounts of genomic DNA from a drop of blood, a single hair folli ...
The Main Features of the Craniate Mitochondrial
The Main Features of the Craniate Mitochondrial

... genes. The coding sequences of the ND1 and ND2 genes of the four animals studied were determined using the vertebrate mitochondrial code, which generates the best amino acid alignment among themselves and with the sequences of a variety of animals from echinoderms to mammals. ND1 amino acid sequence ...
Total genomic DNA of non-treated and DHPA
Total genomic DNA of non-treated and DHPA

... Figure S1 - MSAP analysis of DNA samples isolated from tobacco seedlings treated with 0 μM (DHPA 0), 10 μM (DHPA 10) and 100 μM (DHPA 100) 9-(S)-(2,3dihydroxypropyl)-adenine (DHPA; [1]). DHPA preferentially induces hypomethylation of CHG sequences and also some CG sequences at elevated concentra ...
Full-Text PDF
Full-Text PDF

... extraction from pure 4% w/v skim milk powder was accomplished in the same way as the clay samples were treated. All samples were centrifuged for 5 min at 2500 rpm and phenol-chloroformisoamylalcohol (25:24:1) was added to the removed supernatant in a 1:1 ratio. The vials were shaken by hand for 3 mi ...
Extreme Evolution
Extreme Evolution

... huge difference in an organism’s appearance, as the stripe coders do, could help explain why there are so many kinds of cichlids. We were also eager to survey the cichlid genomes for multiple copies of individual genes. Scientists have known for decades that duplication of genes—which arise from err ...
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DNA barcoding

DNA barcoding is a taxonomic method that uses a short genetic marker in an organism's DNA to identify it as belonging to a particular species. It differs from molecular phylogeny in that the main goal is not to determine patterns of relationship but to identify an unknown sample in terms of a preexisting classification. Although barcodes are sometimes used in an effort to identify unknown species or assess whether species should be combined or separated, the utility of DNA barcoding for these purposes is subject to debate.The most commonly used barcode region, for animals, at least, is a segment of approximately 600 base pairs of the mitochondrial gene cytochrome oxidase I (COI).Applications include, for example, identifying plant leaves even when flowers or fruit are not available, identifying insect larvae (which may have fewer diagnostic characters than adults and are frequently less well-known), identifying the diet of an animal, based on its stomach contents or faeces and identifying products in commerce (for example, herbal supplements, wood, or skins and other animal parts).
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