In tetrad analysis, the criterion for linkage of two genes is
A)NPD = T.
B)PD = T.
C)PD = NPD.
D)PD NPD.
E)PD T.

Question

In tetrad analysis, the criterion for linkage of two genes is
A)NPD = T.
B)PD = T.
C)PD = NPD.
D)PD > NPD.
E)PD > T.

Quizplus · Accepted Answer

PD > NPDIn tetrad analysis, the criterion for linkage of two genes is PD > NPD. This is because if two genes are linked, then they will tend to be inherited together more often than would be expected by chance. This will result in a higher proportion of parental ditype (PD) tetrads than non-parental ditype (NPD) tetrads.

In Tetrad Analysis, the Criterion for Linkage of Two Genes