Put the following events in the evolution of human color vision in chronological order.
A) Duplication of one cone opsin gene to generate the rod opsin
B) Duplication of one red/green cone opsin gene on the X chromosome
C) Divergence of humans from other Old World monkeys and apes
D) Loss of two cone opsin genes
E) Two genome duplication events in the chordate lineage
F) Appearance of red/green cone opsin variants with distinct spectral sensitivities in an ancestral Old World primate population (still hypothetical)

Question

Put the following events in the evolution of human color vision in chronological order. 
A) Duplication of one cone opsin gene to generate the rod opsin
B) Duplication of one red/green cone opsin gene on the X chromosome
C) Divergence of humans from other Old World monkeys and apes
D) Loss of two cone opsin genes
E) Two genome duplication events in the chordate lineage
F) Appearance of red/green cone opsin variants with distinct spectral sensitivities in an ancestral Old World primate population (still hypothetical)

Quizplus · Accepted Answer

The Answer of Put the following events in the evolution of human color vision in chronological order. 
A) Duplication of one cone opsin gene to generate the rod opsin
B) Duplication of one red/green cone opsin gene on the X chromosome
C) Divergence of humans from other Old World monkeys and apes
D) Loss of two cone opsin genes
E) Two genome duplication events in the chordate lineage
F) Appearance of red/green cone opsin variants with distinct spectral sensitivities in an ancestral Old World primate population (still hypothetical)

Put the Following Events in the Evolution of Human Color