The region of a chromosome where the two sister chromatids are joined and to which spindle fibres attach is the
Correct answer: B. centromere
- A. telomere
- B. centromere
- C. centriole
- D. chromomere
Explanation
The centromere holds sister chromatids together and carries the kinetochore, the protein structure the spindle microtubules attach to during division. Telomeres are the protective caps at the chromosome ends that shorten with each replication. Centrioles are separate cytoplasmic structures that organise the spindle rather than part of the chromosome.
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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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