MCQ
The first mammals were like.....
- ALobe fins
- BDianosaur
- CDolphins
- ✓Shrew
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| Column $- I$ | Column $- II$ |
| $(a)$ Phytoplankton, grass | $(p)$ First trophic level |
| $(b)$ Man, Lion | $(q)$ Herbivore |
| $(c)$ Zooplankton, Cow, Grasshopper | $(r)$ Third trophic level |
| $(d)$ Birds, Wolf | $(s)$ Top carnivore |
| | Bioactive Substance | | Role |
| i. | Statin | a. | Removal of oil stains |
| ii. | Cyclosporin A | b. | Removal of clots from blood vessels |
| iii. | Streptokinase | c. | Lowering of blood cholesterol |
| iv. | Lipase | d. | Immuno-suppressive agent |
$I.$ A soil inhabiting plant bacterium, Agrobacteriumtumefaciens, a pathogen of several dicot plants is able to transfer a piece of $DNA$ known as $T-DNA$
$II.$ The T-DNA causes tumours
$III.$ Tumour formation induced by $Ti-$ plasmid
Which of the statements given above are correct?