MCQ
Companion cells are found in the phloem of
- APteridophytes and angiosperms
- BPteridophytes and gymnosperms
- CGymnosperms and angiosperms
- ✓Angiosperms only
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
| Column – I | Column $- II$ |
| $(1)$ Study of disease | $(p)$ Transgenic mice |
| $(2)$ Biological products | $(q)$ Testing toxicity of drug |
| $(3)$ Vaccine safety | $(r)$ Rheumatoid arthritis |
| $(4)$ Chemical safety | $(s)\; \alpha - 1$ Antitrypsin |

|
Column-$I$ (Characters/features) |
Column-$II$ (Examples) |
| $A$. Red dinoflagellates | $I$. Rhizopus |
| $B$. Unicellular fungi | $II$. Gonyaulax |
| $C$. Source of antibiotics |
$III$. Yeast |
| $D$. Bread mould | $IV$. Penicillium |