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Showing the 3D shape of our chromosomes
Showing the 3D shape of our chromosomes

... a role in all sorts of vital processes, including gene activation, gene silencing, DNA replication and DNA repair. In fact, just about any genome function has a spatial component that has been implicated in its control. Dr Fraser added: “These unique images not only show us the structure of the chro ...
Molecular diagnostics of mitochondrial disorders
Molecular diagnostics of mitochondrial disorders

... to the literature, to very few patients. Complex IV deficiency represents around 20% of RC disorders, which hardly suggests that numerous other genes are responsible of these diseases and have to be identified. Therefore, for most isolated complex IV deficiencies, there is no definite strategy for m ...
The Bioinformatics Institute
The Bioinformatics Institute

... Common features of Replication Origins (of E. coli, yeast, SV40) • Unique segments containing multiple short repeated sequences, • Short repeated units recognised by multimeric proteins (which assembles DNA polymerases & replication enzymes), • Origin regions contain an AT-rich stretch (less energy ...
Document
Document

... building a model consistent with the x-ray patterns from fibrous proteins. Like proteins, DNA was built from similar units – the bases adenine (A) thymine (T) guanine (G) and cytosine (C), and so it seemed likely that DNA too had a helical structure. The publishedx-ray patterns of DNA were not very ...
PCR - Polymerase Chain Reaction
PCR - Polymerase Chain Reaction

... • Denaturing gradient gel electrophoresis – The hydrogen bonds formed between complimentary base pairs, GC rich regions ‘melt’ (melting=strand separation or denaturation) at higher temperatures than regions that are AT rich. • When DNA separated by electrophoresis through a gradient of increasing ch ...
F. Mutation and Repair 1. Background on DNA Mutations
F. Mutation and Repair 1. Background on DNA Mutations

... c. Nuclear excision repair ...
Molecular Genetics II (cont.) Mutation
Molecular Genetics II (cont.) Mutation

... will be paired with an A during replication. The UG will thus become an UA and a CG base pair. Replacement of the U or further replication will result in the UA becoming a TA base pair. So, heat causes CG base pairs to become TA base pairs. ...
Chapter 5
Chapter 5

... advancing complexity of living organisms. 1. The idea is that during meiosis in sexually reproducing organisms, crossover mutations can form multiple copies of a gene, a chromosome or the entire genome. 2. The organism survived just fine with one copy so it only repairs damages (mutations) to one co ...
Name Period _____ Date ______ SPRING MULTIPLE CHOICE
Name Period _____ Date ______ SPRING MULTIPLE CHOICE

... 5. How do you graph the results? (what information should you fill in on the graph below…). ...
DNA/RNA/Protein Synthesis Pre-Test
DNA/RNA/Protein Synthesis Pre-Test

... A. Found that A=T and C=G B. Found that traits of bacteria were passed from parents to offspring C. Used X-Ray to reveal structure of crystals D. Found that DNA was made of more than 1 nucleotide; DNA had a backbone made of phosphate and sugar E. Determined that actual structure of DNA; 1 strand is ...
downloadable  file
downloadable file

... in a single reaction mixture with a single gel lane to resolve the DNA pieces, using the colour of the band to indicate the base at the end of the DNA fragment (Figure 1B). This innovation in automation (computers and machines do the work) has enabled many more pieces of DNA to be sequenced. Sanger ...
Unit 7 (Molecular Biology - DNA) Study Guide KEY
Unit 7 (Molecular Biology - DNA) Study Guide KEY

... 29. What are the 4 steps to bacterial cloning? (Hint: Be sure to understand the purpose of the ampR gene on the plasmid as well as placing the bacteria in an antibiotic.) a. The first step in this process uses restriction enzymes to create “Sticky Ends” on a plasmid and DNA from another source. This ...
Miller Syndrome Family Study
Miller Syndrome Family Study

... Syndrome, and mutations in a second gene, DNAH5, have previously been shown to cause primary ciliary dyskinesia. ...
DNA_fingerprinting
DNA_fingerprinting

... these repeats vary from individual to individual. These are the polymorphisms targeted by DNA fingerprinting. E.g. there is a region of DNA just beyond the insulin gene on chromosome 11, consisting of 7 to 40 repeats, depending on the individual. E.g. TCATTCATTCATTCATTCAT is a short tandem repeat (S ...
Model question Paper- Gene Technology MLAB 475
Model question Paper- Gene Technology MLAB 475

... Question 6: In 1962 Watson, Crick and Wilkins won the Nobel Prize for their discovery of the structure of DNA. The figure below shows a picture that was shown to Watson by Wilkins in early 1953. Answer the following with respect to ...
09. Paramecium Species Reading C
09. Paramecium Species Reading C

... partner, and cunningly hunt for food, all of which allow it to thrive in unsalted waters worldwide. The myth of the simple Paramecium was shattered in 2006 when scientists sequenced its genome. They discovered almost 40,000 genes-about twice as many as in a human cell. They also found evidence of ep ...
Introduction to some basic features of genetic information
Introduction to some basic features of genetic information

... instructions for all kinds of biochemical functions, from making proteins to regulatory functions. DNA is found in every cell and every cell type and organism, from single-celled organisms (prokaryotes, e.g. bacteria), to larger multicellular organisms (eukaryotes, e.g. seaweeds, fungi, plant, anima ...
Biology B Final Review ANSWERS
Biology B Final Review ANSWERS

... In anaphase I homologous chromosomes go to opposite sides of the cell, in Anaphase II half of each chromosome go to the sides of each cell Devise a theory that explains why the most complex animals only reproduce sexually. They reproduce sexually because it provides more variation within the populat ...
Lecture#22 - Cloning DNA and the construction of clone libraries
Lecture#22 - Cloning DNA and the construction of clone libraries

... Various vectors have different size foreign DNA inserts Vectors 1) Plasmids - small circular DNA vectors - can clone 0-10 Kb fragments - easily transformed into cell 2) Lambda phage - linear DNA vector - can clone 15-20 Kb fragments - uses lambda in vitro packaging system to put recombinant DNA into ...
Chapter 19 (part 2) - Nevada Agricultural Experiment
Chapter 19 (part 2) - Nevada Agricultural Experiment

... • Therefore, it is easy to unwind short regions of the molecule to allow access for enzymes ...
21_Lecture_Presentation_PC
21_Lecture_Presentation_PC

... • The basis of change at the genomic level is mutation, which underlies much of genome evolution • The earliest forms of life likely had a minimal number of genes, including only those necessary for survival and reproduction • The size of genomes has increased over evolutionary time, with the extra ...
Sequence analysis of three mitochondrial DNA molecules reveals
Sequence analysis of three mitochondrial DNA molecules reveals

... A+T content, ranging from 60% (turquoise) to 90% (red). The S.castellii map was modi®ed from Petersen et al. (23). ...
Chapter 8: Microbial Genetics
Chapter 8: Microbial Genetics

... – Cause electrons to pop out of their usual shells – Ions can combine with bases in DNA, resulting in errors in DNA – Breakage of covalent bonds in sugar-phosphate backbonebreaks in chromosomes ...
The Unseen Genome: Beyond DNA
The Unseen Genome: Beyond DNA

... distinct from the protein-coding genes, connect in surprisingly deep and potent ways to inheritance, development and disease. In the November issue of Scientific American, “The Unseen Genome: Gems among the Junk” described those connections for the second layer, which consists of myriad “RNA only” g ...
Human Genome Project
Human Genome Project

... • Humans share most of the same protein families with worms, flies, and plants; but the number of gene family members has expanded in humans, especially in proteins involved in development and immunity. ...
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Mitochondrial DNA



Mitochondrial DNA (mtDNA or mDNA) is the DNA located in mitochondria, cellular organelles within eukaryotic cells that convert chemical energy from food into a form that cells can use, adenosine triphosphate (ATP). Mitochondrial DNA is only a small portion of the DNA in a eukaryotic cell; most of the DNA can be found in the cell nucleus and, in plants, in the chloroplast.In humans, mitochondrial DNA can be assessed as the smallest chromosome coding for 37 genes and containing approximately 16,600 base pairs. Human mitochondrial DNA was the first significant part of the human genome to be sequenced. In most species, including humans, mtDNA is inherited solely from the mother.The DNA sequence of mtDNA has been determined from a large number of organisms and individuals (including some organisms that are extinct), and the comparison of those DNA sequences represents a mainstay of phylogenetics, in that it allows biologists to elucidate the evolutionary relationships among species. It also permits an examination of the relatedness of populations, and so has become important in anthropology and field biology.
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