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Q. No.Select one of the following pairs of important features distinguishing Gnetum from Cycas and Pinus and showing affinities with angiosperms.
| 1. | absence of resin duct and leaf venation |
| 2. | presence of vessel elements and absence of archegonia |
| 3. | periandl and two integuments |
| 4. | embryo development and apical meristem |
Subtopic: Â Examples of Gymnosperms |
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AIPMT - 2008
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