Among all nucleated body cells, only B and T cells lose DNA during their development and

DNA is the main source of heritable biological information in all cells and organisms, as it contains instructions for building proteins and is passed down from one generation to the next. Despite this, B and T cells undergo a type of DNA deletion known as programmed cell death that results in the loss of genetic material during their development and maturation. This loss of genetic material reduces the cells’ ability to encode information, which in turn affects the develo