Small populations of flies that had three genotypes/phenotypes
for eye color (red,orange, and white) were observed over several
generations under laboratory controlled conditions (all the same
for the samples). Over time the diversity in many of the
populations changed from flies of three colors to flies of one
color, inevitably red or white, but never the heterozygous
condition of orange. These observations suggest a. Natural
Selection, red or white eyes were more adaptive. b. Sexual
Selection, the females were not...