<prompt> Order of development of secondary sexual characteristic in male -Testicular development--pubic hair--axillary hair--beardPubic hair--testicular development--axillary hair -- beardTesticular development --beard--pubic hair-axillary hairAxillary hair--beard --pubic hair--testicular development  <response>: Ans. is a i.e., Testicular development -- pubic hair -- axillary hair -- beard In boys, the first visible sign of pubey and the hallmark of SMR 2 is testicular enlargement. o The sequence of development of secondary sexual characteristic in boys is ? Testicular enlargement -- Penis enlargement -- Pubic hair growth Peak growth velocity -- Axillary hair -4 facial hair. 