Your genome is inherited from your parents, half from your mother and half from your father.
The gametes are formed during a process called meiosis. Like your genome, each gamete is unique, which explains why siblings from the same parents do not look the same.
Following fusion of the egg and sperm, another type of cell division called mitosis occurs, producing two identical cells from one. Mitosis is essential for your body's development, growth and repair.
It is clinically important to understand if a genomic variant associated with a medical condition can be passed on from parent to offspring.