Test tube baby means a baby born when

Options

A. It is developed in a test tube
B. It is developed through tissue culture method
C. The ovum is fertilized externally and the egg is thereafter implanted in the uterus
D. It develops from a non-fertilized egg

Answer

**Step-by-Step Solution:**

1. **Understanding the Term "Test Tube Baby":**
- A test tube baby refers to a baby that is conceived through a specific medical procedure known as In Vitro Fertilization (IVF).

2. **Process of In Vitro Fertilization (IVF):**
- In IVF, the ovum (egg) is fertilized by sperm outside the female body, in a controlled laboratory environment, often referred to as a "test tube" or petri dish.

3. **Fertilization:**
- The fertilization process occurs when the sperm successfully penetrates the egg, leading to the formation of a zygote.

4. **Development of the Zygote:**
- After fertilization, the zygote begins to divide and develop into an embryo.

5. **Implantation:**
- Once the embryo reaches a certain developmental stage, it is then implanted into the uterus of the mother, where it can continue to grow and develop into a fetus.

6. **Clarification of Misconceptions:**
- It is important to clarify that the baby does not develop entirely in the test tube; rather, the initial fertilization occurs there, and the embryo develops in the uterus after implantation.

**Final Answer:**
A test tube baby means a baby born when the ovum is fertilized externally (outside the mother's body) and then the fertilized egg (zygote) is implanted in the uterus for further development.

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