Multiple Choice
Which statement about trophoblast cells is true?
A) They are capable of producing monozygotic twins.
B) They are derived from the hypoblast of the blastocyst.
C) They are endodermal cells.
D) They secrete proteolytic enzymes.
E) They prevent the zona pellucida from attaching to the oviduct.
Correct Answer:
Verified
Correct Answer:
Verified
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