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Mention the ploidy in prothallus of fern...

Mention the ploidy in prothallus of fern and zygote of fern?

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Prothallus in fern represents gametophytic phase, so it is haploid. It is short lived, reduced and dependent on sporophyte in initial stages in the pteridophytes Zygote in ferm is diploid (2n)
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