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Question
Most appropriate term to designate the life cycle of Obelia is
Most appropriate term to designate the life cycle of Obelia is
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Solution
The correct option is B Metagenesis
Metagenesis is an alternation of sexual and asexual stages. The colonial marine hydrozoan Obelia exhibits metagenesis wherein asexual reproduction in polyp through budding produce free-swimming medusa that in turn reproduce sexually by gametic fusion. The zygote develops into planula larva which in turn develops into a polyp followed by colony formation. Neoteny refers to retention of larval features in adults while metamorphosis is the transition of developmental stages; from larva to adult. The correct answer is B.
Metagenesis is an alternation of sexual and asexual stages. The colonial marine hydrozoan Obelia exhibits metagenesis wherein asexual reproduction in polyp through budding produce free-swimming medusa that in turn reproduce sexually by gametic fusion. The zygote develops into planula larva which in turn develops into a polyp followed by colony formation. Neoteny refers to retention of larval features in adults while metamorphosis is the transition of developmental stages; from larva to adult. The correct answer is B.
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