MCQ
Conifers differ from grasses in the
- AProduction of seeds from ovules
- BLack of xylem tracheids
- CAbsence of pollen tubes
- ✓Formation of endosperm before fertilization
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$R$ - Cellulose is made up with only one type of amino acid.
| Column $I$ | Column $II$ |
| $a.$ Weedicide | $(i)$ $GA_3$ |
| $b.$ Bolting | $(ii)$ Cytokinin |
| $c.$ Thinning of cotton | $(iii)$ Ethylene |
| $d.$ Lateral shoot growth | $(iv)$ $2$, $4-D$ |