Fluorescence in situ hybridization (FISH)

Fluorescence in situ hybridization (FISH) is a laboratory test used in pathology to detect and localize the presence or absence of specific DNA sequences on chromosomes. It works by using fluorescent probes that bind to only those parts of the chromosome that match or are complementary to the probe. It is commonly used in the …
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What is KRAS? KRAS is a gene that provides instructions for making a protein called K-Ras. The K-Ras protein sends signals from outside of the cell to the nucleus. These signals cause normal, healthy cells to grow and divide. What is a gene? Each cell in your body contains a set of instructions that tell …
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