A) Absence of resin duct and leaf venation
B) Presence of vessel elements and absence of archegonia
C) Perianth and two integuments
D) Embryo development and apical meristem
Correct Answer: B
Solution :
Gnetum is a genus of gymonosperms, the sole genus in the family-Gnetaceae. They are tropical evergreen trees, shrubs and lianas. Unlike other gymnosperms like Cycas and Pinus, they possess vessel elements in the xylem and absence of archegonia. Some species are found to be insect pollinated also. Thus, show affinities with angiosperms.
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