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Which unicellular organism reproduces by binary fission in any plane?
Answer & Solution
Correct answer: B.
1. Amoeba lacks any fixed orientation of its body.
2. Its binary fission therefore proceeds along any random plane.
3. Leishmania (definite plane), Plasmodium (multiple fission), and Yeast (budding) follow different patterns.
_Source: NCERT Class 10 Science, Ch 7 "How do Organisms Reproduce", §7.2.1_
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