Evolution (Zoology)


  1. Convergent evolution is illustrated by









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    Independent formation of functionally similar structures by unrelated organism is called convergent evolution.

    Correct Option: A

    Independent formation of functionally similar structures by unrelated organism is called convergent evolution.


  1. Which one of the following describes correctly the homologous structures?









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    Those organs which have a common origin and are built on the same anatomical pattern, but perform different functions and are modified accordingly.

    Correct Option: B

    Those organs which have a common origin and are built on the same anatomical pattern, but perform different functions and are modified accordingly.



  1. Similarities in organism with different genotype indicates









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    Microevolution is a series of changes within a species due to gene mutations and accumulation of variations. Macroevolution is evolution in which taxa higher than the level of species are formed due to morphological and cytological changes. Formation of different functional forms of a basically similar structure is called divergent evolution.

    Correct Option: C

    Microevolution is a series of changes within a species due to gene mutations and accumulation of variations. Macroevolution is evolution in which taxa higher than the level of species are formed due to morphological and cytological changes. Formation of different functional forms of a basically similar structure is called divergent evolution.


  1. Darwin’s theory of pangenesis shows similarity with theory of inheritance of acquired characters then what shall be correct according to it?









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    According to both the views, 'something' is passed from parent to offspring which causes development of specific characters.

    Correct Option: B

    According to both the views, 'something' is passed from parent to offspring which causes development of specific characters.



  1. Occurrence of endemic species in South America and Australia is due to









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    These areas are geographically isolated from other continents by the oceanic barrier which has prevented uniform distribution of fauna.

    Correct Option: B

    These areas are geographically isolated from other continents by the oceanic barrier which has prevented uniform distribution of fauna.