The given figure shows structure of forelimbs of different organisms which are labelled as P, Q, R and S. Which of the following is incorrect regarding this?

Foundation

Biology Foundation

Evolution

Question

P and Q are adapted for different functions i.e., swimming and flying respectively thus they are analogous organs.

Q and R both are adapted for the same function i.e., flying, thus they are analogous organs.

None of the above.

P and S both have same basic structural plan, thus they are homologous organs.

LiveFree JEE Main Previous Year Online Papers Live Free JEE Advance Previous Year Online Papers

College PredictorLive

Know your College Admission Chances Based on your Rank/Percentile, Category and Home State.

Get your JEE Main Personalised Report with Top Predicted Colleges in JoSA

Analogous organs show a superficial resemblance:

Their internal structure is quite different. They develop in unrelated organisms.

Stages in the development are different.

They have similar functions.

They have a dissimilar developmental pattern. They show convergent evolution.

Homologous organs are similar in embryology, anatomy, and genetics but they have different functions. P and Q are adapted for different functions hence, they are homologous organs and not analogous organs.