What harmful agent did Muller use to induce mutations?
UV Light
X-rays
Mercury
Asbestos
Answer
The answer is X-rays. X-rays are a type of electromagnetic radiation, like visible light, but with much shorter wavelengths. Muller's experiments exposed fruit flies to X-rays, which caused mutations in their DNA. These mutations could be harmful, beneficial, or neutral, and they could be passed on to the flies' offspring.
The Extraordinary Life of Hermann Joseph Muller: An Immersive Quiz on the Pioneering American Biologist