MCQ
The hypothesis used by the Paul Ehrlich is:
- APopper hypothesis
- BSopar hypothesis
- CCivet popper
- ✓Rivet Popper Hypothesis
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$II.$ The cell is treated with specific concentration of a divalent cation such as $... B...$ to increase pore size in cell wall
$III. $In $...C...$ method recombinant $DNA$ is directly injected into the nucleus of an animal cell
The most appropriate option regarding $\mathrm{A}, \mathrm{B}$ and $\mathrm{C}$ is