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  4. While entering in the neck of a fern archegonium, sperm shows

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Q. While entering in the neck of a fern archegonium, sperm shows

Haryana PMTHaryana PMT 2009

Solution:

In ferns about 32 multiflagellate, spirally coiled sperms are produced in antheridium. These sperms swim towards open archegonia due to the presence of malic acid in the latter, ie, they show chemotaxy.