While entering the neck of a fern archegonium | vedclass

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(B) In ferns,approximately $32$ multiflagellate,spirally coiled sperms are produced in the antheridium.These sperms swim towards the open archegonia d

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Chemotaxis

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(B) In ferns,approximately $32$ multiflagellate,spirally coiled sperms are produced in the antheridium.These sperms swim towards the open archegonia due to the presence of malic acid in the archegonial neck,which acts as a chemical stimulus.This movement of sperms in response to a chemical gradient is known as chemotaxis.

While entering the neck of a fern archegonium,sperms show:

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