MCQ
Function of stem is
- ATo produce branches and leaves
- BStorage of food
- CConduction of water and minerals
- ✓All of these
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$R$ : Cells have deposition of lignin.
Statement $I$ : During Go phase of cell cycle, the cell is metabolically inactive.
Statement $II$ : The centrosome undergoes duplication during S phase of interphase.
In the light of the above statements, choose the most appropriate answer from the options given below:
$(a)$ Heterospory
$(b)$ Endosporic development of gametophyte
$(c)$ Reduced gametophyte
$(d)$ Localization of sporangium bearing appendages in strobili
$(e)$ Unisexual gametophytes
$(f)$ Fertilization with the help of water