Gene for blue opsin is present on autosome number? A. 7 B. 21 C. 9 D. 11 Right Answer: A. 7 Share : December 26, 2017 Hassan Ali Biology Total 1 Votes: 1 0 Tell us how can we improve this Mcqs? Captcha: + = Verify Human or Spambot ? Related Mcqs Check Below -Tides are mainly caused by the gravitational pull of the?Excessive use of green vegetables and tomatoes may be the source of?The actual position where an organism lives is called its?