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Which of the following statements is inc...

Which of the following statements is incorrect about melatonin ?

A

secreted from the pineal gland which is ectodermal in origin

B

synthesised from tryptophan

C

it delays the onset of puberty in the people who are blind since birth

D

it regulates the `24-hour` diurnal rhythm of body

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AAKASH INSTITUTE ENGLISH-TEST 6-EXAMPLE
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