The answer option which best describes the definition of a gene is: B. a section of DNA that produces a single protein product.
A cell refers to the fundamental (basic) structural, functional and smallest unit of life, that is found in every living organisms.
Basically, the hereditary materials of eukaryotes that are found in cells from the largest unit in size to the smallest unit in size are:
I. Nucleus.
II. Chromosome.
III. Gene.
A gene can be defined as a component of deoxyribonucleic acid (DNA) that produces or forms a single (one) protein product.
This ultimately implies that, a gene is the complete set of hereditary instructions that is typically found in the deoxyribonucleic acid (DNA) and it produces a single (one) protein product.
On a related note, genomics refers to the scientific study of genes that are found in living organisms such as humans and animals.
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