In a hypothetical population's gene pool, an autosomal gene, which had previously been fixed, undergoes a mutation that introduces a new allele, one inherited according to incomplete dominance. Natural selection then causes stabilizing selection at this locus. Consequently, what should happen over the course of many generations?
A) The proportions of both types of homozygote should decrease.
B) The proportion of the population that is heterozygous at this locus should remain constant.
C) The population's average heterozygosity should decrease.
D) The two homozygotes should decrease at different rates.
Species richness decreases with distance from the source pool.
Rural versus Urban Population, 1820–1860
Bill Viola, The Reflecting Pool.
Limiting factors restrain population growth
Examples of how the recessive gene for straight hair passes from parents to children
Mammalian male sex determination is initiated by the Y-linked SRY gene