Monochorionic monoamniotic twin occurs if division occurs:: (A) Before 24 hours, (B) 1-4 days, (C) 4-8 days, (D) > 8 days
Answer is D. If the division occur after eight day of feilisation,when the amniotic cavity has already formed,a monoamniotic-monochorionic twin develops. Reference:DC Dutta&;s textbook of obstetrics,8th edition, page no:233. <\p>