All the Offspring of a Cross Between a Black-Eyed Mendelian

question 62

Multiple Choice

All the offspring of a cross between a black-eyed Mendelian and an orange-eyed Mendelian have black eyes. What is the expected phenotypic ratio of a cross between two orange-eyed Mendelians?

• A) 3 black-eyed:1 orange-eyed
• B) 0 black-eyed:1 orange-eyed
• C) 1 black-eyed:3 orange-eyed
• D) 1 black-eyed:0 orange-eyed

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