JJ KK and jj kk individuals (parents) were crossed to each other, and the F1 were testcrossed to the jj kk parent strain. The resulting offspring were: 999 Jj Kk : 999 jj kk : 1 Jj kk : 1 jj Kk. How would the testcross progeny ratios differ if the parents were JJ kk and jj KK instead?
O >9 Jj Kk : >1 jj kk : <3 Jj kk : <3 jj Kk
O 1 Jj Kk : 1 jj kk : 999 Jj kk : 999 jj Kk
O They would not change.
O 1 Jj Kk : 1 jj kk : 1 Jj kk : 1 jj Kk
O 9 Jj Kk : 3 jj kk : 3 Jj kk : 1 jj Kk
O <9 Jj Kk : <1 jj kk : >3 Jj kk : >3 jj Kk