A strand, almost _ nucleotides long is wrapped around a core of _ histone proteins to form a structure called a Nucleosome.
Correct answer: B. 200 - 8
- A. 200 - 4
- B. 200 - 8
- C. 200 - 16
- D. 200 - 40
Explanation
A strand of 200 nucleotides long are wrapped twice around a core of eight histone proteins to form a structure called a nucleosome. The histone octamer at the centre of the nucleosome is formed from two units each of histones H2A, H2B, H3, and H4.
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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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