Question

Which of the following statements is correct with reference to a test tube baby?

• A. Fertilisation of the egg is completed outside the body; the fertilised egg is then placed in the womb of the mother where the gestation is completed.
• B. Fertilisation of the egg is completed in the female genital tract. It is then taken out and grown in a large test tube.
• C. A prematurely born baby is reared in an incubator.
• D. Fertilisation of the egg and growth of the embryo is completed in a large test tube.

Answer 1

The correct option is A Fertilisation of the egg is completed outside the body; the fertilised egg is then placed in the womb of the mother where the gestation is completed.

In test tube baby or in vitro fertilisation technique, the ovum is fertilised with the sperm outside the body of a woman providing the ovum with the same environmental conditions as it would have got inside the uterus. The zygote formed is grown inside a culture and when embryo (having 8 or more blastomeres) is formed, it is then implanted into uterus where it develops into foetus. So, the correct answer is 'Fertilisation of the egg is completed outside the body, the fertilised egg is then placed in the womb of the mother where the gestation is completed'.