MCQ
Growth rings determine
- ✓Age
- BLength
- CBreadth
- DNumber of branches of a plant
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| Column-$I$ | Column-$II$ |
| $A$. Bacteria without walls | $I$. Lysosome |
| $B$. Small circular DNA | $II$. Mycoplasma cells |
| $C$. Flattened sacs in | $III$. Thylakoid a chloroplast |
| $D$. A vesicle in which |
$IV$. Plasmid hydrolytic enzymes are stored |
Reason : Histones are of five major types $H_1,\,H_2A\,, H_2B,H_3$ and $H_4$ .