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Q.

The onset of puberty is marked by the increase in the concentration of 

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a

GnRH, FSH and LH

b

oestrogen, progesterone and GnRH

c

triiodothyronine, tetraiodothyronine and TCT

d

oxytocin, prolactin and relaxin

answer is B.

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Detailed Solution

The onset of puberty is marked by pulses or bursts of LH and FSH secretion, each triggered by a pulse of GnRH.

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