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Assertion: Thoms and tendrislls of Bouga...

Assertion: Thoms and tendrislls of Bougainvillea and Cucurbita represent homology.
Reason: Homologous organs have similar functions but are different in their structural details and origin.

Text Solution

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The correct Answer is:
C
The organs which have the asame fundamental structure but are diffferent in functions are called homologous organs. These organs follow the same basic plan of organisation during their development for example, In plants. The homologous organs are thorn of Bougainvilea and a tendrill of Curculbita. both arising at the axiliary position.
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Are the thorns of Bougainvillea and tendril of Cucurbita homologous or analogous ? What type of evolution has brought such a similarity in them ?

Are the thorn of Bougainvillea and tendril of cucurbita homologous or analogousr What type of evolution has brought such a similarity in them?

Knowledge Check

  • Organs similar in function but different in internal structure are

    A
    Vegetative organs
    B
    Reproductive organs
    C
    Homologous organs
    D
    Analogous organs

  • Organs that perform same function but are not similar in structural details and origin are called

    A
    Analogous organs
    B
    Homologous organs
    C
    Vestigial organs
    D
    None of these.

  • The organs which perform similar functions but have different basic structure are called :

    A
    asymmetric organs
    B
    analogous organs
    C
    homologous organs
    D
    homophonic organs

    • Similar Questions

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    The organs in different animals having similar function and different structure are called______

    Which of the following statement/s is/are wrong? I. Homology is based on divergent evolution whereas analogy refers to a situation exactly opposite. II. The thorn and tendrills of Bougainvillea and Cucurbita represent homology III. Analogous structures are a result of divergent evolution. IV. Darwin's finches represent one of the best examples of adaptive radiation.

    Which of the following groupsof structures // organs have similar function ?

    Assertion : Homologous organs have common ancestry and similar function. Reason : Analogous organs have unlike origin and dissimilar function.

    Which one of the following groups of structures/organs have similar function?

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