which combination of alleles are always involved in the inheritance of a sex - linked trait?\no heterozygous…

which combination of alleles are always involved in the inheritance of a sex - linked trait?\no heterozygous alleles\no homozygous alleles\no alleles that are carried on x and y chromosomes\no alleles that are carried on all chromosomes except the x and y chromosomes
Answer
Brief Explanations:
Sex - linked traits are determined by alleles on sex chromosomes (X and Y). Heterozygous and homozygous alleles can be involved in any trait inheritance, not specifically sex - linked. Alleles on non - sex chromosomes are for autosomal traits.
Answer:
alleles that are carried on X and Y chromosomes