Your human body is manufactured up of trillions of cells. Every mobile has a main composition (nucleus) that contains your chromosomes.
Every chromosome is manufactured up of tightly coiled strands of deoxyribonucleic acid (DNA). Genes are segments of DNA that identify precise attributes, these kinds of as eye or hair coloration. You have much more than 20,000 genes. You have two copies of each and every gene — a single inherited from each and every of your mom and dad.
A variant is a transform in your DNA. Some variants are benign — they are not linked with well being issues. Other variants are pathogenic — they are linked with a genetic or well being problem. Pathogenic variants are at times referred to as mutations.
A lot of forms of pathogenic variants result in a transform in or hurt to a gene. These abnormal genes (gene mutations) can be inherited or acquired. Obtained gene mutations might be linked with environmental exposures. We normally you should not fully grasp the precise exposures that final result in an acquired gene mutation.