Question

In Drosophila melanogaster, black body (b) is recessive to gray body (b+), purple eyes (pr) are recessive to red eyes (pr+), and vestigial wings (vg) are recessive to normal wings (vg+). The loci encoding these traits are linked, with the following map distances: b ------ 5 mu ------ pr -------- 15 mu -------------- vg A fly with black body, purple eyes, and vestigial wings is crossed with a fly homozygous for a gray body, red eyes, and normal wings. The female progeny are then crossed with males that have a black body, purple eyes, and vestigial wings. If 5,500 progeny are produced by this testcross, how many individuals will have black bodies and vestigial wings (b + vg)? Use all decimal points for your calculations and answer.

          In Drosophila melanogaster, black body (b) is recessive to gray body (b+), purple eyes (pr) are recessive to red eyes (pr+), and vestigial wings (vg) are recessive to normal wings (vg+). The loci encoding these traits are linked, with the following map distances: b ------ 5 mu ------ pr -------- 15 mu -------------- vg

A fly with black body, purple eyes, and vestigial wings is crossed with a fly homozygous for a gray body, red eyes, and normal wings. The female progeny are then crossed with males that have a black body, purple eyes, and vestigial wings. If 5,500 progeny are produced by this testcross, how many individuals will have black bodies and vestigial wings (b + vg)? Use all decimal points for your calculations and answer.

Added by Joshua M.

Question

Please give Ace some feedback