Part B. True or False. 11. X-linked genes are located on the X chromosomes. 12. Pattern baldness is an example of a sex-influenced trait. 13. The presence fanlike tail feathers in peacocks is a sex-linked trait. 14. Traits whose alleles are found on the autosomes but are expressed differently in males and females are called sex- influenced traits. 15. Traits that are caused by alleles on the sex chromosomes are called sex-limited traits.