What is correct about mammalian palate? 
1. Primary structure.
2.Parallel to original roof of mouth cavity 
3.Tertiary structure
4. Secondary structure

Options

A. 1,2,3 correct
B. 1,2 correct
C. 2,4 correct
D. 1,3 correct

Answer

To solve the question regarding the mammalian palate, we need to analyze each of the provided statements and determine which ones are correct.

### Step-by-Step Solution:

1. **Understanding the Structure of the Palate**:
- The mammalian palate is an anatomical structure that separates the nasal cavity from the oral cavity. It is formed by the fusion of two palatine shelves.

2. **Evaluating the Statements**:
- **Statement 1: Primary structure** - This is incorrect. The palate is not classified as a primary structure; it is considered a secondary structure.
- **Statement 2: Parallel to original roof of mouth cavity** - This statement is true. The palate runs parallel to the original roof of the mouth cavity.
- **Statement 3: Tertiary structure** - This is incorrect. The palate does not represent a tertiary structure; it is classified as a secondary structure.
- **Statement 4: Secondary structure** - This is correct. The palate is indeed a secondary structure.

3. **Conclusion**:
- From the analysis, we find that statements 2 and 4 are correct. Therefore, the correct answer is that statements 2 and 4 are true regarding the mammalian palate.

### Final Answer:
The correct statements about the mammalian palate are:
- Statement 2: Parallel to original roof of mouth cavity (True)
- Statement 4: Secondary structure (True)

Thus, the correct answer is that statements 2 and 4 are correct.