तुलनात्मक चार्ट के माध्यम से, कुत्ता मछली, मेंढक, छिपकली, कबूतर और खरगोश जैसे नर कशेरुकी पशु प्रकारों में सहायक यौन ग्रंथियों का विवरण दें। (Through a comparative chart, give an account of accessory sex glands in the male vertebrate animal types such as dogfish, frog, lizard, pigeon and rabbit.) (UPSC 2013,25 Marks,)

Through a comparative chart, give an account of accessory sex glands in the male vertebrate animal types such as dogfish, frog, lizard, pigeon and rabbit.