Which is true of genes?

they are proteins that produce sections of dna which control the cell's activities.

they are sections of dna that produce the proteins that control an organism's characteristics.

they are the same as traits which show up in an organism if they are dominant.

they are features that can be observed rather than measured.

They are sections of DNA that produce the proteins that control an organism's characteristics.

Explanation:

Genes are part of DNA that form RNA by the process of transcription. The mRNA formed then later gets translated into proteins. These proteins formed then controls an organism's characteristics.

Genes are a sequence of nucleotides that determines the amino acid that will get incorporated into the polypeptide which eventually constructs the protein.