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View PDF of poster here
View PDF of poster here

... genomic DNA is carried out in a lysing chamber (Figure 3A) using conventional microwave irradiation. The lysing chambers are composed of gold triangles deposited on glass slides, and a self-adhesive silicon isolators (D = 30 mm) placed over the gold triangles to create a lysing chamber. Immediately ...
biotechnology
biotechnology

...  Nucleic acid hybridization  Gel electrophoresis  DNA sequencing  Create a genomic library  RFLP analysis  RNA extraction  Reverse transcriptase ...
DNA TYPING “Fingerprinting” - BHSBiology-Cox
DNA TYPING “Fingerprinting” - BHSBiology-Cox

... Minute amounts of DNA template may be used from as little as a single cell.  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 r ...
Investigation of the structure of DNA
Investigation of the structure of DNA

... Results showed that power 40x is more textured and detailed than the other powers. However the power 4x showed more variety of sizes and shapes of substances, strands, bubble and shadings of different colours. (blue and green) ...
Hierarchical Organization of the Genome
Hierarchical Organization of the Genome

... “The other biologically important feature is the manner in which the two chains are held together. This is done by hydrogen bonds between the bases.” “The important point is that only certain pairs of bases will fit into the structure. One member of a pair must be purine (A/G) and the other a pyrimi ...
9 DNA Sequencing and Generation of Mutations
9 DNA Sequencing and Generation of Mutations

... ƒ Up to 700 bases of sequence information from each of 96 templates ƒ 67,000 bases per h ƒ 25 million bases in one four - hour run ...
DNA Ligase
DNA Ligase

... Helicase: unwinds DNA at origins of replication Initiation proteins separate 2 strands  forms replication bubble Primase: puts down RNA primer to start replication DNA polymerase III: adds complimentary bases to leading strand (new DNA is made 5’  3’) 5. Lagging strand grows in 3’5’ direction by ...
Chapter 16 DNA
Chapter 16 DNA

... Helicase: unwinds DNA at origins of replication Initiation proteins separate 2 strands  forms replication bubble Primase: puts down RNA primer to start replication DNA polymerase III: adds complimentary bases to leading strand (new DNA is made 5’  3’) 5. Lagging strand grows in 3’5’ direction by ...
DNA Function in Heredity Chapter 11
DNA Function in Heredity Chapter 11

... template strand – excision repair • corrects chemical damage, insertions/deletions, etc. –cut a section of the offending strand –remove the flawed region –repair with DNA pol I & DNA ligase ...
DETERMINING THE METHOD OF DNA REPLICATION LAB
DETERMINING THE METHOD OF DNA REPLICATION LAB

... DESCRIPTION OF REPLICATION After the publication of the structure of DNA, several possible hypotheses were advanced to describe how the DNA replicated. Three hypotheses were considered the most likely candidates to correctly explain replication: conservative, semiconservative, and dispersive. During ...
Document
Document

... Growth kinetics of E. coli DH5α was studied in all the combinations of media at temperatures 37 ºC and 25 ºC Electrocompetent cells of E. coli DH5α was prepared by following protocol of Sambrook and Russel (2001) with certain modifications, In this study competent cells were prepared in media combin ...
AP Bio Ch 15
AP Bio Ch 15

... - complexed with protein to form chromatin - condenses into chromosomes during mitosis ...
Restriction Enzyme Digestion
Restriction Enzyme Digestion

... Restriction Enzymes • Phage (or viruses) invade all types of cells. Bacteria are one favorite target. • Defense mechanisms have been developed by bacteria to defend themselves from these invasions. • Bacteria have evolved a class of enzymes that destroy foreign DNA (eg. Virus DNA). ▫ protect bacter ...
It is better to understand a little than to misunderstand a lot` Q1
It is better to understand a little than to misunderstand a lot` Q1

... 2) If we assume that a lagging strand fragment is made from region 1, what will be its sequence? ------------------------------------------------------3) You examine DNA replication in an E. coli mutant, which has a partially defective DNA polymerase. In vitro experiments using the mutant DNA polyme ...
Genetics I Exam 5 Review Sheet - Poultry Science
Genetics I Exam 5 Review Sheet - Poultry Science

... 40. How is deamination damage repaired? Hint: The first enzyme is different in deamination, but then the steps of repair are exactly the same as in depurination DNA repair. 41. Deamination and depurination events are considered hydrolytic reactions. What molecule causes the DNA damage? 42. When DNA ...
ppt
ppt

... Dexter) perform so many genetics tests when they often only find one cell at the scene? • How do C.S.I’s identify suspects through DNA? ...
Document
Document

... …sticky ends with complementary base pairs can form hydrogen bonds, …DNA ligase: an enzyme that catalyzes the reformation of the phosphodiester bonds. ...
2013 Charlotte-Mecklenburg Schools Science Elective Resource
2013 Charlotte-Mecklenburg Schools Science Elective Resource

...  CODIS is the acronym for the “Combined DNA Index System” and is the generic term used to describe the FBI’s program of support for criminal justice DNA databases as well as the software used to run these databases. The National DNA Index System or NDIS is considered one part of CODIS, the national ...
Structure of DNA - McCarter Biology
Structure of DNA - McCarter Biology

... There are four different types of nucleotides found in DNA, differing only in the nitrogenous base. Adenine and guanine are purines. Purines are the larger of the two types of bases found in DNA. They have two rings of carbons & nitrogen's. Cytosine and thymine are pyrimidines and have a single car ...
Cloning and Sequencing
Cloning and Sequencing

Document
Document

... relatively easy to extract from cells and tissues. – DNA molecules from most organisms are much too large to be analyzed, so they must first be cut into smaller pieces. – Many bacteria produce restriction enzymes that cut DNA molecules into precise pieces, called restriction fragments that are sever ...
History of DNA WebQuest
History of DNA WebQuest

... to come up with his rules for base pairing. What are four sources of DNA that he used? http://fig.cox.miami.edu/~cmallery/150/gene/chargaff.htm Adenine (A) pairs with _____________ Guanine (G) pairs with _____________ The bases that are purines include ___________ & ____________. The bases that are ...
Manipulating DNA - tools and techniques 2012
Manipulating DNA - tools and techniques 2012

...  Probes are usually labelled with a marker (e.g. radioactive, fluorescent, etc.) and are complementary to the target sequence.  See Figure 12.9 in your textbook (pg 424). ...
DNA Repair - WordPress.com
DNA Repair - WordPress.com

... after synthesizing a primer by primosome. These gaps are then repaired by using one of the two mechanisms. Originally several proteins were known to facilitate the replication of DNA with lesions. They were believed to interact with the polymerase to make it capable of using damaged DNA as a templat ...
Slide 1
Slide 1

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DNA repair



DNA repair is a collection of processes by which a cell identifies and corrects damage to the DNA molecules that encode its genome. In human cells, both normal metabolic activities and environmental factors such as UV light and radiation can cause DNA damage, resulting in as many as 1 million individual molecular lesions per cell per day. Many of these lesions cause structural damage to the DNA molecule and can alter or eliminate the cell's ability to transcribe the gene that the affected DNA encodes. Other lesions induce potentially harmful mutations in the cell's genome, which affect the survival of its daughter cells after it undergoes mitosis. As a consequence, the DNA repair process is constantly active as it responds to damage in the DNA structure. When normal repair processes fail, and when cellular apoptosis does not occur, irreparable DNA damage may occur, including double-strand breaks and DNA crosslinkages (interstrand crosslinks or ICLs).The rate of DNA repair is dependent on many factors, including the cell type, the age of the cell, and the extracellular environment. A cell that has accumulated a large amount of DNA damage, or one that no longer effectively repairs damage incurred to its DNA, can enter one of three possible states: an irreversible state of dormancy, known as senescence cell suicide, also known as apoptosis or programmed cell death unregulated cell division, which can lead to the formation of a tumor that is cancerousThe DNA repair ability of a cell is vital to the integrity of its genome and thus to the normal functionality of that organism. Many genes that were initially shown to influence life span have turned out to be involved in DNA damage repair and protection.
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