Segment of DNA that codes for a protein.

Segment of DNA that codes for a protein.

• A. Gene
• B. Allele
• C. Chromosome
• D. Genome

Answer: (A)

A gene is a defined stretch of DNA that contains the instructions to produce a product, typically a protein, through transcription and translation. This is exactly what a DNA segment that codes for a protein represents—the specific sequence that carries the information to make that product. An allele is a variant form of a gene at a particular location, not the segment itself. A chromosome is a larger structure that carries many genes, and a genome is the entire set of genetic material of an organism. Therefore, the segment of DNA that codes for a protein is a gene.

A gene is a defined stretch of DNA that contains the instructions to produce a product, typically a protein, through transcription and translation. This is exactly what a DNA segment that codes for a protein represents—the specific sequence that carries the information to make that product. An allele is a variant form of a gene at a particular location, not the segment itself. A chromosome is a larger structure that carries many genes, and a genome is the entire set of genetic material of an organism. Therefore, the segment of DNA that codes for a protein is a gene.