Sex of baby has been decided at which stage ?
Sex of baby has been decided at which stage ?
- A
At the time of fertilization
- B
After placenta formation
- C
At the time of secondary oocytes
- D
After implantation
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Which is the correct sequence in the development of man
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Assertion : In morula stage, cells divide without increase in size.
Reason : Zona pellucida remains undivided till cleavage is complete.
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Reason : Zona pellucida remains undivided till cleavage is complete.
- [AIIMS 1997]
Give scientific reasons : Enzymes are secreted from the cells of trophoblast.
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Syngamy is the process in which
Syngamy is the process in which