Genes A B C D and E are linked on a chromosome and occur in

Genes A, B, C, D, and E are linked on a chromosome and occur in the order given. The test cross Ae / aE × ae / ae indicates the genes recombine with a frequency of 32%.

If 1000 progeny are produced by the test cross, determine the number of progeny in each outcome class.

Enter your answers as whole numbers separated by commas (example: 200, 200, 130, 130).

Solution

A frequency of 32 means:
1-.32 = .68
.68/2 = .34
So 34% for each parental type. Your P types are Ae and aE.

1-(.34*2) = .32
.32/2 = .16
So 16% for your recombinants. Your recombinants are AE and ae.
Therefore:
340 Ae
340 aE
160 AE
160 ae