MCQ
Select the correct statement
- ✓Sequoia is one of the tallest trees
- BThe leaves of gymnosperms are not well adapted to extremes of climate
- CGymnosperms are both homosporous and heterosporous
- DSalvinia, Ginko and Pinus all aregymnosperms
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$I.$ Cytokinins are formed primarily in roots
$II.$ Auxin and cytokinin are antagonistic in apical dominance
$III.$ Kinetin (a modified $DNA$ purine) was discovered from herring sperm
$IV.$ Zeatin is auxin
$V.$ Zeatin was firstly extracted from herring
Choose the incorrect one