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Home  >>  JEEMAIN and AIPMT  >>  Biology
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Select one of the following pairs of important features distinguishing Gnetum from cycas and pinus and showing affinities with angiosperms :

(1) Embryo development and apical meristem

(2) Absence of resin duct and leaf venation

(3) Presence of vessel elements and absence of archegonia

(4) Perianth and two integuments
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