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2.Human Reproduction
normal
Test tube baby means a baby born when
A
The ovum is fertilized externally and thereafter implanted in the uterus
B
It develops from a non-fertilized egg
C
It is developed in a test tube
D
It is developed through tissue culture method
Solution
In certain cases, where normal fertilization is not possible, ovum from the female and the sperm from the male are fused by in vitro technique. The zygote, later on, is implanted in the uterus, where futher development takes place. Patrick Steptoe and Robert Edwards first time developed 'test tube baby technique' in $1978 .$
Standard 12
Biology
