MCQ
Anther is generally composed of
- AOne sporangium
- BTwo sporangium
- CThree sporangium
- ✓Four sporangium
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$a$ - Sacred grooves are part of in situ-conservation
$b$ - Zoological parks are approach for in situ-conservation
$c$ - In this approach ecologically unique and biodiversity rich regions are legally protected.
Reason : Histones are of five major types $H_1,\,H_2A\,, H_2B,H_3$ and $H_4$ .