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Shubham Chaudhary from KENDRIYA VIDYALAYA, asked a question
Subject: Science , asked on 11/11/12

 DEFINE ANALOGOUS & HOMOLOGOUS ORGANS WITH EXAMPLE.

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smartshazia From Queen Marys Girls Sr Sec School, added an answer, on 14/11/12
20 helpful votes in Science

HOMOLOGOUS ORGANS ARE THOSE ORGANS WHICH HAVE THE SAME BASIC STRUCTURE BUT DIFFERENT FUNCTIONS...FOR EXAMPLE..WINGS OF A BAT AND FORELIMB OF HUMANS.....

ANALOGOUS ORGANS ARE  THOSE WHICH HAVE THE SAME FUCTION BUT DIFFERENT BASIC STRUCTURE...FOR EXAMPLE WINGS OF A BAT AND WINGS OF AN INSECT..

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Akansha Verma From Modern Vidya Niketan, added an answer, on 17/2/11
47 helpful votes in Science

HOMOLOGOUS ORGANS  -

They  are those that have same internal bone structures, but their function differs.

EXAMPLE -

Wing of a bat, the lateral fin of a whale, and the human arm[ they all have similar bone structure layout, but they carry out distinct functions] -- Homologous structures means they had came from a common ancestor.



ANOLOGOUS ORGANS

They are ones that basically have th same function but not the same underlying structure.

EXAMPLE -

Bat's wing & Fly's wing- they both are used to help the creature fly, but they have diff patterns in bone structure.
The similarity of the function also reflects that they are adapted to a similar environment!

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Dhara Vaghela From Kendriya Vidyalaya, added an answer, on 12/11/12
82 helpful votes in Science

Homology is the similarity between characteristics of organisms that is due to their shared ancestry. Homology among proteins and DNA is often concluded on the basis of sequence similarity, especially from bioinformatics.

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Astronaut Aastha From The Vidhyanjali International School, added an answer, on 17/2/11
4 helpful votes in Science

 homologous organs = same internal structure    different origin E.g. forelimbs of frog,lizard,bird,human.

analogous organs     = different structure                same function E.g. wings of insects,birds,bats .

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Prakhar Bindal From Dewan Public School, added an answer, on 19/2/11
1687 helpful votes in Science

 Homolous organs: It is the type of organs which perform different functions in different animals but are structurally similar. eg- wings of bird and fore limbs of a human.

Analogous organs:It is the type of organ which perform similar function in different animals but are structurally different. eg -  wings of a bird and wings of an insect. 

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