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A dioecious plant has XX sexual genotype for female and XY for male. After double fertilization, what would be the genotype of the embryos and endosperms?
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- 100% ovules will have XXX endosperm and XX embryo
- 100% ovules will have XXY endosperm and XY embryo
- 50% ovules will have XYY endosperm and XY embryo
- while other 50% will have XXY endosperm and YY embryo
Correct Option: D
Dioecious plants have male (staminate) flowers on one plant, and female (pistillate) flowers on another plant. Some of these plants are polygamo-dioecious, with some male flowers on female plants and some female flowers on male plants. A dioecious plant having XX femal genotype and XY mal genotype undergoes double fertilization. So, on double fertilization, we have :
50% ovules : XXX endosperm and XX embryo And rest 50% ovules : XXY endosperm and XY embryo
