Answer the following question given this paragraph: 

Genes located on the sex chromosomes are called sex-linked genes . Most sex-linked genes are on the X chromosome, because the Y chromosome has relatively few genes. Strictly speaking, genes on the X chromosome are X-linked genes , but the term sex-linked is often used to refer to them.


Q: What are genes located on the sex chromosomes called?

 Choices:

- autosomes

- diploid genes

- dimorphism - linked genes

- sex-linked genes

A:
sex-linked genes
