The ______ charged DNA is wrapped around the positively charged histone octamer to form

Options

A. positively nucleosome
B. negatively nucleosome
C. positively nuclesome
D. negatively nucelotide

Answer

To answer the question, "The ______ charged DNA is wrapped around the positively charged histone octamer to form," we need to analyze the components involved.

1. **Understanding DNA Charge**: DNA is composed of nucleotides, which include a phosphate group. The phosphate group (PO4^3-) contributes a negative charge to the DNA molecule. Thus, DNA is negatively charged.

2. **Histone Octamer**: Histones are proteins that help package DNA in the nucleus. They are positively charged due to the presence of basic amino acids such as lysine and arginine. This positive charge allows them to interact with the negatively charged DNA.

3. **Formation of Nucleosome**: When the negatively charged DNA wraps around the positively charged histone octamer, it forms a structure known as a nucleosome. This is the fundamental unit of chromatin in eukaryotic cells.

4. **Filling in the Blank**: Given the information above, we can fill in the blank in the question. The correct answer is "negatively," as it describes the charge of DNA.

**Final Answer**: The negatively charged DNA is wrapped around the positively charged histone octamer to form nucleosomes.

---