Question
Biology Question on human reproduction
Which of the following takes part in formation of placenta ?
A
Trophoblast and mesoderm
B
Only trophoblast
C
Trophoblast, mesoderm and allantois
D
Only allantois
Answer
Trophoblast, mesoderm and allantois
Explanation
Solution
Answer (c) Trophoblast, mesoderm and allantois