MCQ
The core element of chlorophyll is:
- AManganese.
- BIronne.
- ✓Magnesium.
- DZinc.
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$I.$ Terminalization $II.$ Crossing over
$III.$ Synapsis $IV.$ Disjunction of genomes
The correct sequence is
$I.$ Cytokinins especially help in delaying senescence.
$II.$ Auxins are involved in regulating apical dominance.
$III.$ Ethylene is especially useful in enhancing seed germination.
Gibberellins are responsible for immature falling of leaves