The basic structural unit of a chromosome is____________?
Correct answer: B. Nuceleosome
- A. The centromere
- B. Nuceleosome
- C. Telomere
- D. Histone
Explanation
A nucleosome is the basic structural unit of chromatin, formed when DNA winds around a core of histone proteins, helping package DNA into chromosomes. Students often choose histone because it is part of the nucleosome, but histone alone is not the complete repeating unit.
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