Select the incorrect statement.

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(A) The incorrect statement is that the zygote is a thick-walled diploid sexual spore. In many organisms,especially algae like $Ulothrix$ and $Spirogy

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Zygote is a thick-walled diploid sexual spore.

Vedclass · Answer

(A) The incorrect statement is that the zygote is a thick-walled diploid sexual spore. In many organisms,especially algae like $Ulothrix$ and $Spirogyra$,the zygote develops a thick wall to survive unfavourable conditions,but in general biological terminology,the zygote is often thin-walled during its initial formation. However,specifically in the context of $Chara$,the nucule (female sex organ) is indeed protected by five spirally twisted tube cells and capped by five coronary cells. $Ulothrix$ exhibits external fertilisation. Sweet potato flowers are bisexual. Therefore,the statement regarding the zygote being a thick-walled spore is considered incorrect in the context of general definitions where it is described as a single-celled diploid structure.

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