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The growth of corpus luteum is initiated by

1. Human chorionic gonadotropin
2. Follicle stimulating hormone
3. Luteinizing hormone
4. Prolactin

Correct answer: Luteinizing hormone

Solution

Luteinizing hormone (LH) triggers ovulation and converts the ruptured follicle into the corpus luteum, initiating its growth. Human chorionic gonadotropin later helps maintain the corpus luteum in pregnancy, but it does not initiate it.

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