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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About Chromosomes
Chromosomes are DNA-protein structures that carry genes and become visible during cell division. Coverage includes chromatin, centromeres, sister chromatids, homologous chromosomes, chromosome number, and the distinction between diploid and haploid cells, with links to DNA replication, mitosis and meiosis.
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