NEET 2025 · BiologyPrevious Year Question
Sweet potato and potato represent a certain type of evolution. Select the correct combination of terms to explain the evolution.
Answer: (C) Analogy, convergent. Answer: (C) Analogy, convergent.
- A.Homology, convergent
- B.Analogy, divergent
- C.Analogy, convergent✓
- D.Homology, divergent
Correct Answer
(C) Analogy, convergent
Solution & Explanation
Answer: (C) Analogy, convergent. Sweet potato is a root modification while potato is a stem modification, yet both are swollen food-storage structures performing the same function despite different anatomical origins. Structures that look/function alike but arise from different ancestral structures are analogous, and analogy is the product of convergent evolution. Hence the pair illustrates analogy resulting from convergent evolution, not homology/divergent evolution. NCERT Reference: Ch 6 Evolution, p.115, lines 22–24: "Sweet potato (root modification) and potato (stem modification) is another example for analogy."
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