... (vg+), lobed eye (r+) by the gray body (b), vestigal wings (vg), round eye (r), it
produced 1000 progenies. The following table shows the result obtained from a test cross of
Drosophila with three linked genes. The F1 Drosophila were all wild-type in appearance. The
F1 females were test crossed and the progeny sorted. The following data were obtained:
Based on the given progenies, What would be the order of the linked genes and the distance
between the genes?
Phenotype of test cross progeny Number of Progenies
1- b+ vg r 56
2- b vg r+ 363
3- b vg r 5
4- b+ vg r+ 65
5- b vg+ r+ 55
6- b+ vg+ r 380
7- b+ vg+ r+ 6
8- b vg+ r 70