What are the three most important types of units in radiobiology? Explain the meaning of each.

Most adverse health effects of radiation exposure may be grouped in two general categories:

deterministic effects (harmful tissue reactions) due in large part to the killing / malfunction of cells following high doses; and

stochastic effects, i. e., cancer and heritable effects involving either cancer development in exposed individuals owing to mutation of somatic cells or heritable disease in their offspring owing to mutation of reproductive (germ)