In the diagram of a chromosome, the part labelled as X is :
Correct answer: D. Telomere
- A. Sister Chromatid
- B. Centromere
- C. Chromatin
- D. Telomere
Explanation
The label X points to the tip (end) of the chromatid arm. Telomeres are the protective caps at the ends of chromosomes that prevent degradation and fusion with neighboring chromosomes. The brown regions at both ends of the chromosome represent the telomeric regions in this illustration.
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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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