What technique involves fertilization outside the body of the female?

Options

A. Intrauterine fertilization
B. In vitro fertilization
C. In vivo fertilization
D. Ex vivo fertilization

Answer

**Step-by-Step Solution:**

1. **Understanding Fertilization**: Fertilization is the process where a sperm cell unites with an egg cell. This can occur either inside the female body or outside of it.

2. **Identifying the Techniques**: There are various techniques of fertilization. The two main categories are:
- Intrauterine fertilization: This occurs inside the uterus of the female.
- In Vitro Fertilization (IVF): This occurs outside the female body, typically in a laboratory setting.

3. **Explaining In Vitro Fertilization (IVF)**: In IVF, sperm is collected from the male and eggs are collected from the female. These are then combined in a controlled laboratory environment, allowing fertilization to occur outside the body. After a few days, when the zygote (fertilized egg) has developed sufficiently, it is implanted back into the female's uterus for further development.

4. **Conclusion**: The technique that involves fertilization outside the body of the female is known as In Vitro Fertilization (IVF).

**Final Answer**: In Vitro Fertilization (IVF).

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