A) The ovum is fertilized externally and there after 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
Correct Answer: A
Solution :
[a] In certain cases, where normal fertilization is not possible, ovum from the female and the sperm from the male are mated in vitro. The zygote, later on, is implanted in the uterus where further development into baby takes place. Patrick Steptoe and Robert Edward first time developed 'test-tube baby technique in 1978.
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