The correct relationship among genes, DNA, and traits is best described by:
C. Traits are determined by genes which are composed of DNA.
Here's a breakdown of the relationship:
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DNA (deoxyribonucleic acid) is the hereditary material found in the cells of all organisms. It consists of sequences of nucleotides that encode genetic information.
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Genes are segments of DNA that contain the instructions for making proteins or are involved in regulatory functions. Each gene contributes to specific traits or characteristics of an organism.
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Traits are the observable characteristics or features of an organism, such as eye color, height, or enzyme activity, which are influenced by the genes.
Thus, the relationship flows from DNA to genes to traits: genes are segments of DNA that determine traits.