MCQ
An extrachromosomal $DNA$, which can be used as vector in gene cloning is called
- ATransposon
- BIntron
- CExon
- ✓Plasmid
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$I.$ Charles Elton developed the concept of ecological pyramid
$II.$ After the name these pyramids are also called as Eltonian pyramids
$III.$ It is a graphical representation or pyramid shaped diagram which depicts the number of organisms, biomass and energy at each trophic level
Which of the statements given above are correct?
| Column $- I$ | Column $- II$ |
| $(1)$ Baculo Virus | $(a)$ Bacillus thuringiancis |
| $(2)$ Trichoderma polysporum | $(b)$ Monoscus purpureus |
| $(3)$ Statins | $(c)$ Cyclosporin$- A$ |
| $(4)$ $BT$ Cotton | $(d)$ Nucleopolyhedro |
| $(e)$ Saccaromyacis sariviceae |