quick biology question

[sheldonthebird]

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what does the placenta develop from? I have conflicting sources that say either:
1. chorion
2. allantois

Which one is it? this is a definite DAT type question.

 

[CCEMTP2DOC]

what does the placenta develop from? I have conflicting sources that say either:
1. chorion
2. allantois

Which one is it? this is a definite DAT type question.

Chorion.



Rob

 

[BenignDMD]

what does the placenta develop from? I have conflicting sources that say either:
1. chorion
2. allantois

Which one is it? this is a definite DAT type question.

Yep Chorion