In Assisted Reproductive technoloty, the method in which a sperm is directly injected into ovum is called

Options

A. ZIFT
B. ICSI
C. GIFT
D. ET

Answer

**Step-by-Step Text Solution:**

1. **Understanding the Question**: The question asks about a specific method in Assisted Reproductive Technology (ART) where a sperm is directly injected into an ovum.

2. **Identifying the Options**: The options provided are:
- ZIFT (Zygote Intra-Fallopian Transfer)
- ICSI (Intracytoplasmic Sperm Injection)
- GIFT (Gamete Intra-Fallopian Transfer)
- ET (Embryo Transfer)

3. **Analyzing Each Option**:
- **ZIFT**: This method involves fertilizing the egg outside the body and then transferring the zygote into the fallopian tube. It does not involve direct injection of sperm into the ovum.
- **ICSI**: This is a technique where a single sperm is directly injected into an ovum. This method is specifically designed to assist in fertilization, especially in cases of male infertility.
- **GIFT**: In this method, both sperm and eggs are placed into the fallopian tubes, allowing fertilization to occur naturally inside the body. It does not involve direct injection of sperm into the ovum.
- **ET**: This refers to the transfer of embryos into the uterus after fertilization has occurred, but it does not involve the direct injection of sperm into the ovum.

4. **Conclusion**: Based on the analysis, the correct answer is ICSI (Intracytoplasmic Sperm Injection), as it specifically refers to the method where a sperm is directly injected into an ovum.

**Final Answer**: ICSI (Intracytoplasmic Sperm Injection)

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