About ____ bp of DNA is wrapped over nu-body to complete about ____turns.

Options

A. 200,3/4
B. `200, 1 3/4`
C. `80, 1/2`
D. `80, 3 1/2`

Answer

To solve the question, we need to fill in the blanks regarding how many base pairs of DNA are wrapped around a nucleosome and how many turns this wrapping completes.

### Step-by-Step Solution:

1. **Understanding the Structure of Nucleosomes**:
- In eukaryotic cells, DNA is packaged into structures called nucleosomes. Each nucleosome consists of a segment of DNA wrapped around a core of histone proteins.

2. **Identifying the Number of Base Pairs**:
- It is known that approximately **200 base pairs (bp)** of DNA are wrapped around each nucleosome.

3. **Determining the Number of Turns**:
- The DNA wrapped around the nucleosome completes about **1.75 turns** around the histone octamer.

4. **Filling in the Blanks**:
- Therefore, the completed statement will be: "About **200 bp** of DNA is wrapped over the nucleosome to complete about **1.75 turns**."

### Final Answer:
About **200 bp** of DNA is wrapped over nucleosome to complete about **1.75 turns**.

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