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NEET Questions / Botany / Sexual Reproduction in Flowering Plants / Post Fertilization Structure And Events
Which one of the following statements regarding post-fertilization development in flowering plants is incorrect?
Ovary develops into fruit
Zygote develops into embryo
Central cell develops into endosperm
Ovules develop into embryo sac
What is the fate of the male gametes discharged in the synergid?
One fuses with egg other(s) degenerate(s) in the synergid.
All fuse with the egg.
One fuses with the egg, other(s) fuse(s) with synergid nucleus.
One fuses with the egg and other fuses with central cell nuclei.
Extrusion of second polar body from egg nucleus occurs:
after entry of sperm but before fertilization
After fertilization
before entry of sperm into ovum
simultaneously with first cleavage
What is the fate of the male gametes discharged in the synergid?
One fuses with egg other(s) degenerate(s) in the synergid.
All fuse with the egg.
One fuses with the egg, other(s) fuse(s) with synergid nucleus.
One fuses with the egg and other fuses with central cell nuclei.
Extrusion of second polar body from egg nucleus occurs:
after entry of sperm but before fertilization
After fertilization
before entry of sperm into ovum
simultaneously with first cleavage
Which of the following statements is not correct?
Pollen grains of many species can germinate on the stigma of a flower, but only one pollen tube of the same species grow into the style.
Insects that consume pollen or nectar without bringing about pollination are called pollen / nerctar robbers.
Pollen germination and pollen tube growth are regulated by chemical components of pollen interacting with those
of the pistil.
Some reptiles have also been reported as pollinators in some plant species.
The morphological nature of the edible part of coconut is
Pericarp
Perisperm
Cotyledon
Endosperm
During embryogenesis zygote undergoes
Cell division
Cell differentiation
Meiosis only
Both 1 and 2