Which of the Following Are True of Color Vision in New

question 6

Multiple Choice

Which of the following are true of color vision in New World monkeys?

• A) Both male and female howler monkeys have trichromatic vision.
• B) Many species maintain multiple alleles of the red/green opsin gene in the population.
• C) Random X-inactivation would allow a female monkey heterozygous for two opsin alleles with differing spectral sensitivities to distinguish red and green.
• D) A shared regulatory region likely ensures that only one opsin gene (red or green) is expressed in each cone cell in howler monkeys.
• E) All of the above

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