1. In this longitudinal section of a dicot angiosperm stem, name the structure indicated by 'X'.

2. These phenomena are quite similar to the model system of seed germination presented by dicot plants, suggesting that this model may be conserved in both dicot and monocot plants.

3. CYP93G2 is related to the CYP93B subfamily, which consists of dicot flavone synthase II enzymes.

4. This gene encodes a polypeptide of 211 amino-acid residues and belongs to a subgroup of the rice WRKY gene family that probably originated after the divergence of monocot and dicot plants.

5. The greenhouse results showed that it is excellent herbicide both to monocot and dicot weeds.