# GATE2014-53

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?

1. $100\%$ ovules will have $XXX$ endosperm and $XX$ embryo
2. $100\%$ ovules will have $XXY$ endosperm and $XY$ embryo
3. $50\%$ ovules will have $XYY$ endosperm and $XY$ embryo, while other $50\%$ will have $XXY$ endosperm and $YY$ embryo
4. $50\%$ ovules will have $XXX$ endosperm and $XX$ embryo, while the other $50\%$ will have $XXY$ endosperm and $XY$ embryo
in Others
edited

## Related questions

1
The unit for specific substrate consumption rate in a growing culture is $\frac{g}{L-h}$ $\frac{g}{h}$ $\frac{g}{g-h}$ $\frac{gmoles}{L-h}$
2
Since mammalian cells are sensitive to shear, scale-up of a mammalian cell process must consider, among other parameters, the following $\text{(given N=rotations/time, D=diameter of impeller)}$ $\pi ND$ $\pi N^2D$ $\pi ND^2$ none of these
A bacterium belonging to cocci group has a diameter of $2\:\mu m.$ The numerical value of the ratio of its surface area to volume (in $\mu m^{-1}$) is _______.
The statistical frequency of the occurrence of a particular restriction enzyme cleavage site that is $6$ bases long can be estimated to be once every $24$ bases once every $256$ bases once every $1024$bases once every $4096$ bases