Monohybrid crosses Transitional Reasoning Practice

Questions

1. 1.

   In pea plants, purple flower color is completely dominant over white flower color. Crossing two purple-flowered plants produced an $F_1$ generation of 118 purple-flowered and 42 white-flowered plants. A single purple-flowered plant is selected at random from this $F_1$ generation and test-crossed with a white-flowered plant. What is the probability that an individual offspring resulting from this test cross will have white flowers?

   • A) $1/4$
   • B) $1/2$
   • C) $1/3$
   • D) $2/3$

Answers and step-by-step solutions appear after you finish the test.