The human genome is organised in 46 chromosomes, where all but the x and y chromosomes in men are present in two copies. This means that a person with a faulty gene on one chromosome most often has a ...

People inherit two copies of each gene - one from each parent - an evolutionary fail-safe to ensure survival even when one of them doesn't function. For cancer-suppressor genes like BRCA1, researchers ...

Johns Hopkins Medicine researchers say they have found that specific variations in three genes related to maintaining the length of telomeres — the protective DNA endcaps on chromosomes — may explain ...

Up to 5% of Americans may carry genetic variants associated with cancer risk, according to a cross-sectional analysis.The ...

To determine the type and severity of a cancer, pathologists typically analyze thin slices of a tumor biopsy under a microscope. But to figure out what genomic changes are driving the tumor's growth - ...