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A 'test-tube baby' is correctly described as a baby that:
AGrew completely inside a glass test tube
BWas born without a mother
CWas conceived by IVF — egg and sperm fused outside the body in a lab, then the resulting embryo was placed in the mother's uterus where it developed normally
DWas made entirely by cloning
Answer & Solution
Correct answer: C. Was conceived by IVF — egg and sperm fused outside the body in a lab, then the resulting embryo was placed in the mother's uterus where it developed normally
The popular term 'test-tube baby' is misleading: babies cannot grow in glass. In IVF (in-vitro fertilisation), an egg and sperms are placed together in the lab and allowed to fuse outside the body. The resulting embryo is then transferred into the mother's uterus, where the rest of pregnancy proceeds normally. IVF is used when the woman's oviducts are blocked or other natural barriers prevent conception.
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