MCQ
Which is not a physiological effect of auxins?
- ACell elongation
- BDevelopment of parthenocarpic fruits
- CPrevention of abscission of leaves and fruits
- ✓Reversal of genetic dwarfism
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$I.$ In gymnosperms, the male and female gametophytes have an independent existence.
$II.$ The multicellular female gametophyte is retained within the megasporangium.
$III.$ The gymnosperms are heterosporous.
Of these statements
$(1)$ pucinia, $(2)$ choletotrichum, $(3)$ albugo, $(4)$ claviceps, $(5)$ agaricus