Each of the following statements concerning the seminiferous epithelium is correct except .

Options

A. Before puberty , it contains spermatids
B. It consists of Sertoli cells and spermatogenic cells
C. It has a robust basement membrane
D. Its basal compartment contains spermatogonia

Answer

To solve the question regarding the seminiferous epithelium, we need to evaluate each statement provided and identify the incorrect one. Here’s a step-by-step breakdown of the solution:

### Step 1: Understand the Structure and Function of Seminiferous Epithelium
- The seminiferous epithelium is located in the testes and is crucial for the process of spermatogenesis, which is the formation of sperm cells.

### Step 2: Analyze Each Statement
1. **Statement 1**: "Before puberty, it contains spermatid."
- This statement is **incorrect**. Before puberty, the seminiferous epithelium does not contain spermatids; it primarily contains spermatogonia, which are the precursor cells that develop into spermatids after puberty.

2. **Statement 2**: "It consists of Sertoli cells and spermatogenic cells."
- This statement is **correct**. The seminiferous epithelium is made up of Sertoli cells (which support and nourish the developing sperm) and spermatogenic cells (which are involved in the process of sperm formation).

3. **Statement 3**: "It has a robust basement membrane."
- This statement is **correct**. The seminiferous tubules have a strong basement membrane that supports the structure and function of the epithelium.

4. **Statement 4**: "Its basal cell compartment contains spermatogonia."
- This statement is **correct**. The basal compartment of the seminiferous epithelium is where spermatogonia are located, which are the stem cells that will undergo division to eventually form sperm.

### Step 3: Identify the Incorrect Statement
- Based on the analysis, the first statement is the only incorrect one. Therefore, the answer to the question is that the statement "Before puberty, it contains spermatid" is incorrect.

### Final Answer:
The incorrect statement concerning the seminiferous epithelium is: **"Before puberty, it contains spermatid."**