What defines a sex-limited trait?

A sex-limited trait is defined by its expression being influenced by the sex of the organism, where the trait may not be expressed at all or may manifest differently based on whether the individual is male or female. For instance, some traits may only appear in one sex due to hormonal influences, even if both sexes carry the underlying genetic information.

When understanding this concept, it is important to note that while some traits can be more prominent in one sex due to these factors, they are not necessarily linked to the presence of the trait in both sexes. This means that the correct definition highlights that the expression is contingent upon the sex of the individual rather than a universal expression across all individuals.