Spermatogonia undergo a growth phase to become

Options

A. spermatozoa
B. spermatids
C. primary spermatocyte
D. secondary spermatocyte

Answer

To solve the question "Spermatogonia undergo a growth phase to become," we need to understand the process of spermatogenesis and the stages involved. Here’s a step-by-step breakdown:

### Step 1: Identify the starting point
- **Spermatogonia** are the initial germ cells located in the seminiferous tubules of the testes. They are diploid cells (2n) containing 46 chromosomes.

### Step 2: Understand the growth phase
- Spermatogonia undergo a growth phase where they increase in size and prepare for the next stage. This phase involves mitotic division, where spermatogonia replicate to produce more spermatogonia.

### Step 3: Transition to primary spermatocytes
- After the growth phase, spermatogonia differentiate into **primary spermatocytes**. This is the key transformation that occurs after the growth phase.

### Step 4: Summary of the process
- The process of spermatogenesis begins with spermatogonia, which undergo mitosis to increase in number and then differentiate into primary spermatocytes.
- The primary spermatocytes will then undergo meiosis to eventually form spermatids and then mature into spermatozoa.

### Final Answer
- Spermatogonia undergo a growth phase to become **primary spermatocytes**.

---