MCQ
The genetic material in viruses is
- AOnly $ RNA$
- BOnly $ DNA$
- C$RNA $ and $DNA$ both
- ✓$RNA$ or $DNA$ i.e. one nucleic acid in a virus
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$A.$ Mosses and lichens are the first organisms to colonise a bare rock.
$B.$ Selaginella is a homosporous pteridophyte.
$C.$ Coralloid roots in Cycas have $VAM$.
$D.$ Main plant body in bryophytes is gametophytic, whereas in pteridophytes it is sporophytic.
$E.$ In gymnosperms, male and female gametophytes are present within sporangia located on sporophyte.
$(i)$ Have an independent life.
$(ii)$ Organs development.
$(iii)$ Perform metabolic activity for life.
$(iv)$ Tissue constitute