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Which one of the following correctly des...

Which one of the following correctly describes the homologous structures?

A

Organs appearing only in embryonic stage arid disappearing later in the adult

B

Organs with anatomical similarities, but performing different functions

C

Organs with anatomical dissimilarities, but performing same functions

D

Organs that have no function now, but had an important function in ancestors

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The correct Answer is:
B

Homologous structures are similar in origm l similar or dissimilar in function, such as pecto fins of fish and forelimbs of horse are similar structure but different in functions
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NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)-EVOLUTION -EXERCISE
  1. Which one of the following sequences was propsoed by Darwin and Wallac...

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  2. Convergent evolution is illustrated by

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  3. Which one of the following correctly describes the homologous structur...

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  4. Which of the following pair is homologous organ?

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  5. Genetic drift operates in :

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  6. In which condition the gene ratio remains constant for any species ?

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  7. According to fossils discovered up to present time origin and evolu...

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  8. In which ear reptiles were dominant ?

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  9. Sequence of which of the following is used to know the phylogeny ?

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  10. Two different species cannot live for long duration in the same niche ...

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  11. Which of the following is correct order of the evolutionary history of...

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  12. Similarity in organisms with different genotypes indicates :

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  13. Diversity of living organisms is due to :

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  14. Which of the following is closet realative of man?

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  15. If Darwin's theory of pangenesis shows similarity with theory of inher...

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  16. Half-life of .^(14)C is :

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

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  18. Homo sapiens/Homo Erectus evolved in

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  19. Which of the following features is closely realted with the evolution...

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  20. Which of the following primate is the closet relative of humans ?

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