The DNA of a eukaryotic chromosome is first coiled around histone proteins to form repeating units called
- A. centromeres
- B. kinetochores
- C. chromatids
- D. nucleosomes
Explanation
Each nucleosome is DNA wrapped around a core of eight histones, like beads on a string, and these coil further to condense the chromosome. The centromere is a region of the chromosome and the kinetochore the spindle attachment on it, neither of which packages DNA.
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