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Fluorescence in situ hybridization (FISH) is a method used to detect specific DNA sequences in chromosomes. The technique uses fluorescent probes that bind to only those parts of the chromosome with a high degree of sequence similarity to the probe. This makes it possible to visualize individual chromosomes and specific regions within chromosomes. FISH can […]

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Somatic cell hybridization is a method used to create recombinant DNA molecules. The technique involves combining DNA from two different sources, usually from different species. The resulting DNA molecule will contain genetic information from both parents. Somatic cell hybridization can be used to create transgenic animals or plants, which are organisms that contain foreign DNA. […]

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What is a Chromosome? A chromosome is a long, continuous strand of DNA that contains many genes. Genes function as the basic unit of heredity in living cells, coding for various proteins. Each gene is located at a specific position on the chromosome, known as its locus. Chromosomes also contain non-coding regions of DNA, which […]

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In prokaryotic cells the focus of the regulation of gene expression is almost entirely at the level of the initiation of transcription. However, in eukaryotic cells, regulation of gene expression can occur at all stages of transcription and translation, and even at protein stability. Opportunities for Gene Regulation in Gene Expression in Eukaryotes Those common […]

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