Test-tube baby programme is a boon to infertile couples. Explain the steps followed in this procedure.

Explanation

**Step-by-Step Solution for the Test-Tube Baby Programme:**

1. **Understanding the Concept**: The test-tube baby programme, also known as in vitro fertilization (IVF), involves fertilization that occurs outside the female body. This procedure is particularly beneficial for infertile couples who are unable to conceive through natural means.

2. **Collection of Gametes**: The first step in the procedure is to collect the ova (eggs) from a female donor and sperm from a male donor. This can be done through medical procedures where the eggs are retrieved from the ovaries and sperm is collected through ejaculation or surgical extraction.

3. **Fertilization**: Once the ova and sperm are collected, they are combined in a controlled laboratory environment. This medium is specially designed to provide all necessary conditions for fertilization to occur. When the sperm successfully penetrates the egg, a zygote is formed.

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