Question

At what stage in test tube babies, the zygote is implanted in human female?

• A. 32-celled stage
• B. 64-celled stage
• C. 100-celled stage
• D. 164-celled stage

Answer 1

Answer: (A)

Zygote is implanted in human female at 32-celled stage because fertilized egg in human are not divide beyond 32-celled stage in natural zygote.