A cistron is ________?
Correct answer: C. Functional unit gene
- A. Structural of gene
- B. Functional unit of RNA
- C. Functional unit gene
- D. Replication unit of gene
Explanation
A cistron is the functional unit of a gene, specifically a DNA segment that codes for one polypeptide or functional RNA product. It is not merely the structural part of a gene, and replication is associated with a replicon rather than a cistron. Students may choose the replication unit because both terms describe gene-related DNA regions, but their functions differ.
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