MCQ
The pyrenoids are made up of:
- ✓Proteinaceous centre and starchy sheath.
- BCore of protein surrounded by fatty sheath.
- CCore of starch surrounded by sheath of protein.
- DCore of nucleic acid surrounded by protein sheath.
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$R$ : It has tetrach vascular bundles usually.
$‘A’ $ $ ‘B’$
$(1) $ Auxin $(I)$ Ripening and maturity of fruits
$(2)$Gibberellin $(II)$Differentiation of xylem elements
$(3) $ Cytokinin $(III)$ Prevention of genetic and physiological dwarfism
$(4) $ Ethylene $(IV)$ Found from tumour tissue of tobacco
$(1)$ $(2)$ $(3)$ $(4)$