A gene located on either sex chromosome.Group of answer choicesX-linked geneautosomal genemitochondrial genesex-linked geneNext

The question asks about the classification of a gene located on either of the sex chromosomes. Here’s a breakdown of the answer:

1. Understanding Sex Chromosomes: Humans typically have two sex chromosomes, X and Y. Genes located on these chromosomes are involved in determining sex-related traits.

2. Gene Classification:

   • X-linked gene: Genes located specifically on the X chromosome.
   • Y-linked gene: Genes located specifically on the Y chromosome.
   • Autosomal gene: Genes located on any of the autosomes (non-sex chromosomes).
   • Mitochondrial gene: Genes located in the mitochondria, which are inherited maternally.
   • Sex-linked gene: A broader term that encompasses any gene located on a sex chromosome (X or Y).

3. Correct Answer: The most accurate answer to the question is "sex-linked gene," as it refers to genes that reside on either the X or Y chromosome.

In summary, the gene located on either sex chromosome is best classified under the term "sex-linked gene."