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What is the reason for the formation of a bud in Hydra?
Repeated cell division at one specific site
Overgrowth of the whole body
Cell cycle
Mutation
Repeated cell division at one specific site
Hydra reproduces asexually through a process called budding. This occurs when localized, rapid cell proliferation takes place at a specific site on the parent body wall, leading to the formation of a small outgrowth that eventually develops into a new, independent Hydra.
Hydra reproduces asexually through a process called budding. This occurs when localized, rapid cell proliferation takes place at a specific site on the parent body wall, leading to the formation of a small outgrowth that eventually develops into a new, independent Hydra.
Think of it like a new branch growing out from the side of a tree trunk; it starts small as a cluster of dividing cells and eventually becomes a complete, functional part of the plant.
The budding process is driven by the regenerative capacity of interstitial stem cells. These cells undergo repeated mitotic divisions at a particular point, forming a bud that mimics the parent's structure by developing its own tentacles and mouth before detaching.
Budding is a form of asexual reproduction.
It is common in organisms with high regenerative power like Hydra and Yeast.
The new individual remains attached to the parent until it matures.
The process relies on continuous mitotic cell division.
Allows for rapid population increase without the need for a mate.
Efficient in stable, favorable environments.
Results in genetically identical offspring (clones), limiting genetic variation.
Biological research on regenerative capabilities.
Studies of asexual reproduction in Cnidarians.
Regeneration in Hydra is mediated by specialized interstitial cells.
Option B is incorrect because 'overgrowth' implies a disease or uncontrolled mass rather than the organized growth of a bud. Option C is a general term for the cell cycle, not the specific mechanism for budding. Option D (Mutation) is a genetic change, not a reproductive mechanism.
A is correct тАФ The formation of a bud in Hydra is fundamentally caused by repeated mitotic cell division at a specific site on the body wall.
Always distinguish between 'budding' (asexual reproduction involving cell proliferation) and 'regeneration' (replacing lost parts), though both involve similar cellular mechanisms in Hydra.