MCQ
The devices to discourage self pollination are
- APollen release and stigma receptivity is not synchronised
- BAnther and stigma are placed at different position
- CAnther and stigma are placed at different position
- ✓All of these
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
| Column $-I$ | Column $-II$ |
| $(A)$ Physical barriers | $(1)$ Interferon |
| $(B)$ Physiological barriers | $(2)$ Leukocytes |
| $(C)$ Cellular barriers | $(3)$ Tears |
| $(D)$ Cytokinin barriers | $(4)$ skin |
$A$ $B$ $C$ $D$
$I.$ Ethidium bromide
$II.$ Restriction endonuclease
$III.$ Agarose
$IV.$ $UV$ radiation
Choose the correct option: