Which of the following statements is not true ?

1. Flippers of penguins and dolphins are a pair of homologous organs

2. Analogous structures are a result of convergent evolution

3. Sweet potato and potato is an example of analogy

4. Homology indicates common ancestry

Doubtly Asked 30 Oct 2026 NEET UG 2022 Practice test neet Save WhatsApp Report

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Answer: 1. Flippers of penguins and dolphins are a pair of homologous organs

Key idea: Homologous organs share origin; analogous organs share function only.

Penguin and dolphin flippers evolved separately for swimming (convergent evolution), so they are analogous, not homologous. Option 1 is false.
Option 2 is true.
Option 3 is true: sweet potato (a root) and potato (a stem) are analogous.
Option 4 is true.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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