# GATE2014-47

In a genetic cross between the genotypes $WWXX$ and $\text{wwxx}$, the following phenotypic distributions were observed among the $F_2$ progeny: $\text{WX, 562; wx, 158; WX, 38; and wX, 42}$. Likewise, a cross between $XXYY$ and $\text{xxyy}$ yielded the following results: $\text{XY, 675; xy, 175; Xy, 72; and xY, 78.}$ Similarly, a cross between $WWYY$ and $\text{wwyy}$ yielded: $\text{WY, 292; wy, 88; Wy, 12; and wY, 8.}$ In all the genotypes, capital letters denote the dominant allele. Assume that the F1 progeny were self-fertilized in all three crosses. Also, double cross-over does not occur in this species. Which of the following is correct?

1. Relative position: $\text{W-X-Y}$ Distances: $\text{W-X = 5}$ map units, $\text{X-Y = 17}$ map units
2. Relative position: $\text{X-Y-W}$ Distances: $\text{X-Y = 15}$ map units, $\text{Y-W = 11}$ map units
3. Relative position: $\text{Y-W-X}$ Distances: $\text{Y-W = 5}$ map units, $\text{W -X = 11}$ map units
4. Relative position: $\text{X-W-Y}$ Distances: $\text{X-W = 5}$ map units, $\text{W-Y = 10}$ map units
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