When Mendel Set Up a Parental (P) Cross Between True

question 42

Multiple Choice

When Mendel set up a Parental (P) cross between true breeding purple and white flowered plants to generate the F1 and then allowed the F1 to self-pollinate to generate the F2 he saw a dominant to recessive ratio of 3:1. What phenotypic ratio would be expected if he crossed the F1 with the original purple parent?

• A) 4:0
• B) 1:1
• C) 3:1
• D) 9:3:3:1

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