Question

which statement describes a gene? one variation of the code for a protein the pair of dna sequences an organism has for a trait the physical trait produced by an organisms genetic makeup a section of dna in which the code for a protein is located

Explanation:

A gene is a segment of DNA that contains the instructions for making a specific protein. It is not just a variation of the protein - code, nor is it a pair of DNA sequences for a trait (that's related to alleles). The physical trait is the phenotype, not the gene itself.

Answer:

a section of DNA in which the code for a protein is located