Exact replica of chromosome refers to ___________?
Correct answer: A. Chromatid
- A. Chromatid
- B. Centromere
- C. Kinetochore
- D. Arms
Explanation
After DNA replication, each identical copy of a chromosome is called a sister chromatid, and the two chromatids remain joined at the centromere. Students may choose the arms because they are visible chromosome regions, but arms are only parts of a chromatid and are not complete replicas.
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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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