Question

5.

Please explain, I understand how todetermine the single and double cross progeny, but not sure whereto to from there.

The following genotypesare a result of a three-point cross between

Offspring	#
z z j j oo	690
z+ z j+j oo	6
z z j+j o+o	119
z+z jj o+o	45
z+z j joo	108
z z j+j oo	49
z z j j o+o	5
z z+ j j+ oo+	675

1. What are thefrequencies of the parental and the recombinantgenotypes?

2. Which genotypes arethe result of a double recombination?

z+ z j+j o+ o (6) and z zj j o+ o (5) (is this correct?)

3. Generate a geneticmap for the three genes z, j, and o.