Final answer:
Sex limited genes are present in both sexes but turned on in only one, causing different traits. Sex-linked traits are located on the sex chromosomes while X-linked traits are traits present only on the X chromosome.
Step-by-step explanation:
Sex-limited genes: Sex-limited genes are genes that are present in both sexes of sexually reproducing species but turned on in only one sex. They cause the two sexes to show different traits or phenotypes. For example, genes instruct male elephant seals to grow big and fight, while instructing female seals to grow small and avoid fights. These genes are responsible for sexual dimorphism.
Sex-linked traits: Sex-linked traits are located on genes on the sex chromosomes. They usually refer to traits due to genes on the X chromosome. Since males and females have different sex chromosomes, there are differences in how sex-linked traits are expressed between the sexes.
X-linked traits: X-linked traits are traits that are present only on the X chromosome and not on the Y chromosome. They are inherited differently between males and females because males have only one X chromosome, while females have two.