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DNA Probes: Species- or subspecies-specific DNA (including Complementary dna; conserved genes, whole chromosomes, or whole genomes) used in hybridization studies in order to identify microorganisms, to measure Dna-dna homologies, to group subspecies, etc. The DNA probe hybridizes with a specific mRNA, if present. Conventional techniques used for testing for the hybridization product include dot blot assays, Southern blot assays, and DNA:RNA hybrid-specific antibody tests. Conventional labels for the DNA probe include the radioisotope labels 32P and 125I and the chemical label biotin. The use of DNA probes provides a specific, sensitive, rapid, and inexpensive replacement for cell culture techniques for diagnosing infections.
 JoVE Developmental Biology

Understanding Early Organogenesis Using a Simplified In Situ Hybridization Protocol in Xenopus

1Developmental and Stem Cell Biology, Hospital for Sick Children, 2Children's Health Research Institute, University of Western Ontario, 3Department of Physiology and Pharmacology, University of Western Ontario, 4Neurosciences and Mental Health, Hospital for Sick Children, 5Department of Paediatrics, University of Western Ontario


JoVE 51526

 JoVE Neuroscience

Detection of the Genome and Transcripts of a Persistent DNA Virus in Neuronal Tissues by Fluorescent In situ Hybridization Combined with Immunostaining

1Virus and Centromere Team, Centre de Génétique et Physiologie Moléculaire et Cellulaire, CNRS UMR 5534, 2Université de Lyon 1, 3Laboratoire d'excellence, LabEX DEVweCAN, 4Institut de Virologie Moléculaire et Structurale, CNRS UPR 3296, 5Centre de Recherche en Cancérologie de Lyon, INSERM U1052, CNRS UMR 5286


JoVE 51091

 JoVE Bioengineering

Bacterial Detection & Identification Using Electrochemical Sensors

1Research Service, Veterans Affairs Greater Los Angeles Healthcare System, 2Department of Urology, The David Geffen School of Medicine, University of California, Los Angeles, 3GeneFluidics, 4Division of Infectious Diseases, Veterans Affairs Greater Los Angeles Healthcare System, 5Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles


JoVE 4282

 JoVE In-Press

Measurement of Differentially Methylated INS DNA Species in Human Serum Samples As a Biomarker of Islet β Cell Death

1Department of Pediatrics, IU Center for Diabetes and Metabolic Disease, Indiana University School of Medicine, 2Department of Pediartics, Omaha Children's Hospital and Medical Center, University of Nebraska Medical Center, 3Departments of Biochemistry and Molecular Biology, Medicine, and Cellular and Integrative Physiology, IU Center for Diabetes and Metabolic Disease, Indiana University School of Medicine, 4Indiana Biosciences Research Institute

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JoVE 54838

 JoVE Immunology and Infection

Pairwise Growth Competition Assay for Determining the Replication Fitness of Human Immunodeficiency Viruses

1Department of Microbiology, University of Washington, 2Departments of Medicine and Laboratory Medicine, University of Washington, 3U.S Military HIV Research Program, Walter Reed Army Institute of Research, 4Henry M. Jackson Foundation


JoVE 52610

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