MCQ
Choose the correct option w.r.t. the function of the germ pore.
- ✓It allows growth of pollen tube
- BIt allows water absorption in seed
- CIt helps dehiscence of pollen grain
- DMore than one option is correct
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| Column $I$ | Column $II$ |
| $A$. Centrioles |
$I$. Non-membrane bound organelle Which helps in cell division |
| $B$. Fimbriae |
$II$. Special structure of bacteria which help them to attach with rocks in |
| $C$. Endomembrane |
$III$. Includes those organelles system whose functions are coordinated |
| $D$. Mitochondria |
$IV$. Divide by fission and site of aerobic respiration |
$A$ - number of chromosomes in endosperm
$B$ - number of chromosomes in egg cell
$C$ - number of chromosomes in polar nuclei
Reason : Oxygen started accumulating in the atmosphere after the non-cyclic pathway of photosynthesis evolved