NEETBiologySexual Reproduction in Flowering PlantsMCQ+4 / −1
Endosperm is formed during the double fertilization by
- Atwo polar nuclei and one male gamete
- Bone polar nuclei and one male gamete
- Covum and male gamete
- Dtwo polar nuclei and two male gametes.
View written solutionFree
Correct answer: A
Double fertilization is the simultaneous
occurrence of syngamy and triple fusion. Syngamy
involves fusion of one male gamete with egg cell
to form zygote. The result of syngamy is zygote
(2n) which ultimately develops into embryo.
The second male gamete fuses with 2 polar nuclei
or secondary nucleus to form triploid primary
endosperm nucleus and this is called triple fusion.
This primary endosperm nucleus (3n) ultimately
develops into a nutritive tissue for developing
embryo called endosperm.
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