which of the following is common to both ER and Golgi complex ?

Options

A. Both are double membrane bound
B. Both have cisternae
C. Both contain their own DNA
D. Both are semi-autonomous organelles

Answer

To answer the question "Which of the following is common to both ER and Golgi complex?", we will analyze each option provided:

1. **Both are double membrane bound**:
- The endoplasmic reticulum (ER) and Golgi complex are both membrane-bound organelles, but they are single membrane-bound, not double membrane-bound. Therefore, this statement is incorrect.

2. **Both have cisternae**:
- Cisternae are flattened, curved membrane sacs. Both the endoplasmic reticulum and the Golgi complex contain cisternae, which play an important role in their respective functions. This statement is correct.

3. **Both contain their own DNA**:
- Semi-autonomous organelles are those that contain their own DNA, such as chloroplasts and mitochondria. The endoplasmic reticulum and Golgi complex do not contain their own DNA. Therefore, this statement is incorrect.

4. **Both are semi-autonomous organelles**:
- As mentioned earlier, semi-autonomous organelles are characterized by having their own DNA. Since neither the endoplasmic reticulum nor the Golgi complex contains DNA, this statement is also incorrect.

After analyzing all the options, the correct answer is that **both have cisternae**.

### Step-by-Step Solution:
1. **Identify the organelles**: Recognize that we are comparing the endoplasmic reticulum (ER) and the Golgi complex.
2. **Examine the first option**: Determine if both are double membrane-bound. Conclude that they are single membrane-bound, making this option incorrect.
3. **Examine the second option**: Check if both have cisternae. Confirm that both organelles do have cisternae, making this option correct.
4. **Examine the third option**: Investigate if both contain their own DNA. Conclude that neither contains DNA, making this option incorrect.
5. **Examine the fourth option**: Assess if both are semi-autonomous. Conclude that they are not, as they lack their own DNA, making this option incorrect.
6. **Final conclusion**: The only correct statement is that both the ER and Golgi complex have cisternae.