Acrosome of the sperm of frog helps in fertilization by

Options

A. Activating the oocyte to engulf the sperm
B. Inducing formation of cone of reception in oocytc
C. Stimulating oocyte to undergo second maturation div1s1on
D. Secreting sperm lysin to dissolve covering membrane of oocyte

Answer

### Step-by-Step Solution:

1. **Understanding the Acrosome**: The acrosome is a specialized structure located at the tip of the sperm. It contains enzymes that play a crucial role during fertilization.

2. **Role in Fertilization**: During fertilization, the sperm must penetrate the outer layers of the egg (oocyte) to achieve successful fertilization. The acrosome helps in this process.

3. **Secretion of Enzymes**: The acrosome releases specific enzymes known as sperm lysins. These enzymes are crucial for breaking down the protective layers surrounding the oocyte.

4. **Dissolving the Membrane**: The sperm lysins secreted by the acrosome dissolve the covering membrane of the oocyte, which is often referred to as the white line membrane or plasma membrane.

5. **Inducing Fertilization**: By dissolving these membranes, the sperm can successfully penetrate the oocyte, allowing for fertilization to occur.

6. **Conclusion**: Therefore, the acrosome of the sperm of frogs helps in fertilization primarily by secreting sperm lysins to dissolve the covering membrane of the oocyte.