NEET 2016 Biology question

Which of the following structures is homologus to the wing of a bird?

(1)Dorsal fin of a shark
(2)Wing of a moth
(3)Hind limb of rabbit
(4)Flipper of whaleCorrect

Answer: (4)

Solution

Homologous organs have the same fundamental structure and origin but may perform different functions. The wing of a bird and the flipper of a whale are both modified forelimbs with the same bones (humerus, radius-ulna, carpals, metacarpals and phalanges) - homologous organs

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Question ID VK-091978