| Column-$I$ | Column-$II$ |
|---|---|
| $(1)$ Grasses | $(P)$ Prevent autogamy and geitonogamy |
| $(2)$ Hydrilla | $(Q)$ Wind pollination |
| $(3)$ Cleistogamous flower | $(R)$ Water pollination |
| $(4)$ Papaya | $(S)$ Autogamy |
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| Column-$I$ | Column-$II$ |
| $P$. Pistil/Megasporophyll | $I$. Megasporophyll |
| $Q$. Ovule | $II$. Megasporangium |
| $R$. Embryo sac | $III$. Female gametophyte |
| Column-$I$ | Column-$II$ |
| $(a)$ Sporopollenin | $(1)$ Spindle-shaped nucleus |
| $(b)$ Cellulose,Pectin | $(2)$ Exine |
| $(c)$ Vegetative cell | $(3)$ Intine |
| $(d)$ Generative cell | $(4)$ Irregularly shaped nucleus |
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