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What is a gene in genetics?
a monosaccharide sugar that has several forms
a segment of DNA that is involved in producing a polypeptide chain
a gasoline substitute consisting of 90% gasoline and 10% grain alcohol from corn
the state of matter distinguished from the solid and liquid states by relatively low density and viscosity
The correct answer is: a segment of DNA that is involved in producing a polypeptide chain
A gene is a section of DNA that contains the instructions for creating a specific protein or functional RNA molecule. It is not a sugar or a fuel substitute, nor is it a state of matter. The other incorrect options do not accurately describe a gene or its function in genetics.