If mate selection were random:
a. African Americans would be more likely to marry whites than other African Americans.
b. upper-class people would be even less likely to marry lower-class people.
c. inter-religious marriages would not exist.
d. divorce rates would be much higher.
e. marriage would be more inter-religious.
Question 2
The United States population pyramid qualifies as because, except for the oldest categories, each cohort is roughly the same size.
a. expansive
b. constrictive
c. stationary
d. triangular
Balancing selection and heterozygote advantage.
Men with African elephant tusks, Dar es Salaam, c. 1900
African Pygmy Goose - Houston Zoo
Schematic representations of (a) random, (b) alternating, (c) block, and (d) graft copolymers.
Positive and negative selection during T-cell development.
One generation of random mating produces Hardy–Weinberg equilibrium