Biology, asked by onlyankita475, 3 days ago

what do you mean by collar of gingko?...2marks question...​

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Answered by r27272278
0

and similar rudiments in extant Ginkgo suggest that the collar of Ginkgo was initially a bilateral structure with directional growth, which bore ovule on its abaxial side. The collar of Ginkgo is interpreted as a vestigial organ

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