MCQ
Antibodies fight against:
- AStress
- BThirst
- CStarvation
- DInfection
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| Column-$I$ (Scientists) | Column-$II$ (Discovery) |
|
$A$. Ernst Mayr |
$I$. Discovered Viroids |
| $B$. Whittaker | $II$. Gave the name virus |
| $C$. Ivanowsky | $III$. Proposed five kingdom classification |
| $D$. Diener | $IV$. Evolutionary biology |
$I$. Each cell of sporogenous tissue in anther is capable of giving rise to microspore tetrad.
$II$. The pollen grain represent male gametophyte.
$III$. Pollen grains are usually triangular and $10-15 \mu m$ in diameter.
$IV$. Sporopollenin is one of the most resistance organic material which can be destroyed only by strong acids
and alkali.
| Column-$I$ | Column-$II$ |
| (Cell type) | (Size) |
| $A$. Viruses | $I$. $1-2\; mm$ |
| $B$. $PPLO$ | $II$. $10-20\; mm$ |
| $C$. Eukaryotic cell | $III$. About $0.1\; mm$ |
| $D$. Bacterium | $IV$. $0.02-0.2\; mm$ |