Analogy and Convergent Evolution — NEET Biology
✅ Asked in NEET 2025Homology is based on divergent evolution whereas analogy refers to a situation exactly opposite. Wings of butterfly and of birds look alike. They are not anatomically similar structures though they perform similar functions. Hence, analogous structures are a result of convergent evolution - different structures evolving for the same function and hence having similarity. Other examples of analogy are the eye of the octopus and of mammals or the flippers of Penguins and Dolphins. One can say that it is the similar habitat that has resulted in selection of similar adaptive features in different groups of organisms but toward the same function: Sweet potato (root modification) and potato (stem modification) is another example for analogy.
Analogy refers to similar-looking structures in different organisms that arose from different ancestral origins but perform the same function due to convergent evolution. Students often confuse analogy with homology—remember that analogous structures are NOT anatomically similar (like butterfly and bird wings), while homologous structures share the same origin. NTA tests this by asking you to identify examples: wings of birds and insects, eyes of octopus and mammals, or flippers of penguins and dolphins are analogous. The key trap is thinking 'similar function = homology'—it's actually the opposite. Always ask: Did these structures evolve from a common ancestor (homology) or did different ancestors develop similar structures for the same need (analogy)? That distinction clinches the answer.
This paragraph was tested 6 times in NEET.
Sweet potato and potato represent a certain type of evolution. Select the correct combination of terms to explain the evolution.(NEET 2025)
The flippers of the Penguins and Dolphins are the example of: (NEET 2024)
Which of the following statements is not true? (NEET 2022 Phase 1)
Flippers of Penguins and Dolphins are examples of (NEET 2020)
Among the following sets of examples for divergent evolution, select the incorrect option. (NEET 2019)
Among the following sets of examples for divergent evolution, select the incorrect option. (NEET 2018)
Through deep analysis of NEET and NTA, 88 of 90 questions from the NEET 2026 paper were matched straight from the MedicNEET Biology question bank.
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