Functional unit of DNA Is____________?
Correct answer: B. Genes
- A. Nucleus
- B. Genes
- C. Chromosomes
- D. Nucleolus
Explanation
A gene is a specific segment of DNA that carries information for a functional product, such as a protein or functional RNA, making it the functional unit of heredity. A chromosome is a much larger DNA-protein structure containing many genes. Students may choose chromosome because it contains genes, but it is not the basic functional unit of DNA.
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