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2.Human Reproduction
normal
$A$ : If both the ovaries are removed after the first trimester of pregnancy, still there would be normal growth of foetus.
$R$ : After first trimester placenta secretes sufficient progesterone
A
Assertion and Reason both are correct and also correct explantion.
B
Assertion and Reason both are correct but not explanation of assertion.
C
Assertion is correct, but Reason is incorrect.
D
Both Assertion and Reason are incorrect.
Solution
During first trimester, corpus luteum is responsible for secreting progesterone. If both ovaries are removed during first trimester, there will be abortion.
Standard 12
Biology
