MCQ
$DNA$ is a polymer of
- ✓Nucleotide
- BNucleoside
- CAmino acids
- DAll of the above
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
| Column - $I$ | Column - $II$ |
| $(a)$ Parasitism | $(i)$ $++$ |
| $(b)$ Commensalism | $(ii)$ $+-$ |
| $(c)$ Amensalism | $(iii)$ $0+$ |
| $(d)$ Mutualism | $(iv)$ $0-$ |
$I.$ In gymnosperms, the male and female gametophytes have an independent existence.
$II.$ The multicellular female gametophyte is retained within the megasporangium.
$III.$ The gymnosperms are heterosporous.
Of these statements