Explanation:
The high energy radiation causes damage to the cancer cell’s genetic material by inducing double-stranded breaks in their DNA. This acts as a signal for the cells to begin the process of apoptosis – induced cell death. The cancer cells then are unable to reproduce and die.
However the radiation my reach neighboring healthy cells and also destroy their DNA. If these genes for apoptosis are also damaged in the process then the cells may begin dividing with damaged genetic material resulting in more cancer.
Answer:
Mathematically, symmetry means that one shape becomes exactly like another when you move it in some way: turn, flip or slide. ... There are three basic types of symmetry: rotational symmetry, reflection symmetry, and point symmetry.