The central part of the proximal region of the centriole is proteinaceous and called the (A)____, which is connected with tubules of the peripheral triplet by (B)_____.

Options

A. A - Axoneme , B - Linear spokes
B. A - Axoneme p, B - Linear hub
C. A - Hub , B - Radial spokes
D. A - Hub , B - Radial axoneme

Answer

To solve the question, we need to identify the terms that fill in the blanks regarding the structure of the centriole.

1. **Understanding the Structure of the Centriole**:
- The centriole is a cylindrical structure composed of microtubules and is essential for cell division.
- It has a central part and peripheral triplets of microtubules.

2. **Identifying the Central Part**:
- The question states that the central part of the proximal region of the centriole is proteinaceous.
- This central part is known as the "central hub" or simply "hub".

3. **Identifying the Connection to Peripheral Triplets**:
- The peripheral triplets consist of microtubules arranged in a specific manner.
- The central hub is connected to these peripheral triplets by structures known as "spokes".

4. **Filling in the Blanks**:
- For (A), the answer is "central hub".
- For (B), the answer is "spokes".

Thus, the completed sentence is:
The central part of the proximal region of the centriole is proteinaceous and called the **(A) central hub**, which is connected with tubules of the peripheral triplet by **(B) spokes**.