Chapter 4: Heredity and Evolution

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Heredity and Evolution


An example of homologous organs is:

(a) our arm and a dog’s fore-leg.

(b) our teeth and an elephant’s tusks.

(c) potato and runners of grass.

(d) all of the above.


Homologous organs: Organs having the same basic designs but different functions are called homologous organs. Homologous organs represent common ancestry. Flippers of dolphins, arm of human, forelimb of horse and wings of bat are the examples of homologous organs.

Hence, the correct answer is (d) all of the above.

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