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In Hydra, the bud growing on its body wall is formed by repeated division of which cells?
AGerminal epithelial cells
BRegenerative cells of body wall
CPolar nuclei of the embryo sac
DCells of seminiferous tubules
Answer & Solution
Correct answer: B. Regenerative cells of body wall
1. In Hydra a bud arises at a specific part of the body under favourable conditions.
2. It is produced by repeated divisions of the regenerative cells of the body wall.
3. The bud's dermal layers and digestive cavity stay continuous with the parent until it separates.
4. Germinal epithelium and seminiferous tubules belong to animal gametes, and polar nuclei to plants, so those are ruled out.
_Source: Balbharati (Maharashtra Board) Class 10 Science & Technology Part 2, Ch 3 "Life Processes in Living Organisms Part 2", p.34_
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