A) Ginkgo Archegonia
B) Salvinia Prothallus
C) Viroids RNA
D) Mustard Synergids.
Correct Answer: B
Solution :
[b] Salvinia is a heterosporoues water fern. The microsporangia and megasporangia are borne within special reproductive structure called sporocarps. These are borne terminally in clusters on the segment of submerged leaves. |
Sporocarps are strictly monosporangiate, i.e.., they bear either only microsporangia or megasporangia. |
Viroids are single stranded RNA molecules. The female reproductive organ is archegonia in gymnosperms. |
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