13. Monozygotic (MZ) twins share percent of the genes that vary across individuals; that vary percent of the genes while dizygotic (DZ) twin share, on average, across individuals. a. 50; 25 b. 90; 10 C. 50; 100 d. 100; 50 14. According to Parental Investment Theory (Trivers, 1972), biological differences between women and men make it more likely that women would value mate and would be most upset by that person's in a potential a. financial security; emotional infidelity b. financial security; sexual infidelity 15. C. d. attractiveness; emotional infidelity attractiveness; sexual infidelity When Eagly and Wood (1999) reanalyzed data from Buss's multi-national study that found sex differences in what men versus women found important in potential partners, they found: a. no support for the evolutionary psychology viewpoint b. that the sex differences occurred reliably across a wide range of cultures C. both men and women valued financial security over attractive in a mate d. the more equality between men and women in a culture, the less the differences in qualities preferred in a mate