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In genomics, DNA–DNA hybridization is a molecular biology technique that measures the degree of genetic similarity between DNA sequences. It is used to determine the genetic distance between two organisms and has been used extensively in phylogeny and taxonomy .
Fluorescence in situ hybridization (FISH) is a laboratory method used to detect and locate a DNA sequence, often on a particular chromosome. [4]In the 1960s, researchers Joseph Gall and Mary Lou Pardue found that molecular hybridization could be used to identify the position of DNA sequences in situ (i.e., in their natural positions within a chromosome).
Colony hybridization begins with a desire to extract a segment of DNA containing a specific gene, such as a gene that conveys antibiotic resistance. [4] A specific piece of DNA is removed from its respective cell culture and inserted into a bacterial plasmid via a process known as recombination. These bacterial plasmids are cultured on a ...
Sequencing by hybridization is a non-enzymatic method that uses a DNA microarray. A single pool of DNA whose sequence is to be determined is fluorescently labeled and hybridized to an array containing known sequences. Strong hybridization signals from a given spot on the array identifies its sequence in the DNA being sequenced. [135]
In molecular biology, a hybridization probe (HP) is a fragment of DNA or RNA, usually 15–10000 nucleotides long, which can be radioactively or fluorescently labeled.HPs can be used to detect the presence of nucleotide sequences in analyzed RNA or DNA that are complementary to the sequence in the probe. [1]
The PCR products are circularized upon hybridization to target-specific probes with sequences complementary to the two primers used in the PCR step. Capture by selective circularization method: [16] The genomic DNA is digested into fragments with restriction enzymes. Using selector probes with flanking regions that are complementary to the ...
Sequencing by hybridization is a class of methods for determining the order in which nucleotides occur on a strand of DNA. Typically used for looking for small changes relative to a known DNA sequence . [ 1 ]
Chromosome combing (also known as molecular combing or DNA combing) [1] is a technique used to produce an array of uniformly stretched DNA that is then highly suitable for nucleic acid hybridization studies such as fluorescent in situ hybridisation (FISH) which benefit from the uniformity of stretching, the easy access to the hybridisation target sequences, [2] and the resolution offered by ...