What is a mutation in the context of rabbit genetics?

In the context of rabbit genetics, a mutation refers to changes in a gene that can lead to different expressions of a trait. These mutations can influence how certain characteristics, like fur color or pattern, are displayed in rabbits. The key aspect of mutations is that they can arise from various factors such as environmental influences or errors during DNA replication. These changes can often be recessive, meaning they may not be expressed unless the rabbit has two copies of the mutated gene. Additionally, certain mutations can lead to lethal conditions, where the organism may not survive if it possesses the mutation. Thus, recognizing that mutations can lead to significant variations in phenotypic traits is crucial for understanding genetics in rabbits.

The other options do not encompass the full scope of what mutations entail. For instance, a genetic trait could be either dominant or recessive, but not all mutations result in traits that are always dominant. The notion of an irreversible change in color does not accurately represent mutations, as variations can be expressed in different ways and can sometimes be reverted or influenced by other genetic factors. Finally, a simple change in fur length may be indicative of a particular trait, but it does not capture the complexity of mutations and their biological implications within genetics.