Mutations are known to be:

Mutations are indeed random changes in an organism's genetic code. They occur due to various reasons such as errors in DNA replication, exposure to certain chemicals, radiation, or can even be spontaneous. These changes can happen at any point in the genome and are vital to the process of evolution as they introduce new genetic variations into a population. Over time, some of these mutations might be beneficial, harmful, or neutral, but their occurrence is not guided by any predetermined factors.

Understanding the randomness of mutations helps clarify why they can lead to a wide range of effects in organisms. Some mutations may have no observable effect at all, while others can contribute positively to an organism's adaptability or survival in its environment. The concept of mutation being a random event is foundational in the study of genetics and evolution, highlighting the inherent unpredictability of genetic variation within a population.