genetics

Rearrangement

In a molecular pathology report, the word rearrangement refers to a change in the DNA structure within a cell. DNA is usually organized into long strands called chromosomes, each containing many genes. A rearrangement happens when a piece of a chromosome breaks off and attaches somewhere else, either on the same chromosome or another chromosome. …
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KRAS

KRAS is a gene that provides instructions for making a protein involved in cell signaling. This protein helps control how cells grow, divide, and survive. When KRAS works normally, it plays an important role in regulating the growth and development of cells in the body. However, when changes (mutations) occur in the KRAS gene, the …
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