MCQ
Vitamin$-K$ is required for:
- AChange of prothrombin to thrombin.
- ✓Synthesis of prothrombin.
- CChange of fibrinogen to fibrin.
- DFormation of thromboplastin.
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$I.$ hypodermis $II.$ cortical layer
$III.$ pericycle $IV.$ endodermis $V.$ epidermis