MCQ
$A$ substance forms Zwitter ion. It can have functional groups
- A$- NH _{2},- COOH$
- B$- NH _{2},- SO _{3} H$
- ✓Both $(a)$ and $(b)$
- DNone of these

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| Column $-I$ | Column $-II$ |
| $(1)$ Pollination by water | $(a)$ Grass |
| $(2)$ Pollination by wind | $(b)$ free-nuclear endosperm |
| $(3)$ coconut water | $(c)$ Guava |
| $(4)$ Fleshy fruit | $(d)$ Hydrilla |
| $(e)$ cellular endosperm |
$R$ : It is due to monadelphous condition.