MCQ
Choose incorrect pair :
- AWind pollinated plant - Maize, Grass
- BWater pollinated plant -Vallisneria, zosterans
- CPollination in yucca - moth
- ✓Chasmogamous and cleistogamous flowers - Mango
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$R$ : Immobilised nutrients cannot be available for solubilisation after the death of saprotrophs.
$R$ : Climate of tropical region is more seasonal.
$(i)$ Sickle - cell anaemia is controlled by three pairs of allele.
$(ii)$ Trisomy is chromosomal disorder.
$(iii)$ $47$ chromosome present in person whose having Turner's syndrome.
- Autogamy is genetically xenogamy
- Pollination occurs by air in grass
- Placenta is arranged in inner wall of ovary
- It is possible to store pollen grains in liquid nitrogen - $100^oC$