In general, when biologists speak of sex-linked genes they are referring to genes on:

Question

Quizplus · Accepted Answer

When biologists speak of sex-linked genes, they are referring to genes that are located on the sex chromosomes, specifically the X chromosome. This is because the X chromosome is larger than the Y chromosome and contains more genes. Genes on the Y chromosome are also sex-linked, but they are only found in males since females lack a Y chromosome. Therefore, the most accurate answer is C - the X chromosome.

In General, When Biologists Speak of Sex-Linked Genes They Are