State true (T) or false (F).
A test-tube baby fully grows in a laboratory._______

Explanation

**Step-by-Step Solution:**

1. **Understanding the Term "Test-Tube Baby":** A test-tube baby refers to a baby that is conceived through in vitro fertilization (IVF). This process involves fertilizing an egg (ova) with sperm outside the human body in a controlled environment, usually in a laboratory.

2. **The Process of IVF:**
- The sperm and ova are combined in a laboratory setting to form a zygote.
- The zygote is then allowed to develop for a short period in the laboratory.
- After this initial development, the zygote (now an embryo) is implanted into the uterus of a female.

3. **Growth of the Baby:**
- Once the embryo is implanted in the uterus, it continues to grow and develop into a fetus.
- The actual growth of the baby occurs inside the female's uterus, not in the laboratory.

4. **Conclusion:** Based on the understanding of the IVF process, the statement "A test-tube baby fully grows in a laboratory" is false. The growth occurs in the uterus after implantation.

**Final Answer:** False (F)

---