Which one of the following is a pair of homologus organs?
Lungs of rabbit and gills of rohu
Wing of bat and wing of butterfly
Pectoral fin of rohu and the forelimb of horse
Wing of grasshopper and wing of crow
Correct answer: (c)
Solution: Homologous organs are those organs which are similar in their morphology, anatomy, genetics and embryology but dissimilar in their functions. For example, pectoral fins of rohu are homologous to the forelimbs of tetrapods.