Table 1.

Placental weights (in grams) of Peromyscus crosses

Cross	Range	Mean	SD
BW × BW	0.078–0.241	0.181	0.043
PO × PO	0.098–0.250	0.181	0.036
BW × PO	0.038–0.145	0.096	0.027
PO × BW	0.232–0.776	0.511	0.149
G10/13 × BW	0.127–0.673	0.277	0.091
PO × G3/8	0.102–0.612	0.257	0.114

Backcross data include all mature placentas from this study. Parental and F₁ data from Duselis et al. (2005).