Probability in genetics Original Scenario-Based Practice

Questions

1. 1.

   In an arboreal canopy research station, biologists breed a nocturnal orchid where purple petal coloration (P) is dominant to white (p), and nocturnal fragrance emission (F) is dominant to non-fragrance (f), with both genes assorting independently. A cross is performed between two dihybrid plants with the genotype PpFf. What is the probability that a randomly chosen offspring will exhibit either both dominant traits (purple and fragrant) or both recessive traits (white and non-fragrant)?

   • A) $\frac{9}{16}$
   • B) $\frac{5}{8}$
   • C) $\frac{9}{64}$
   • D) $\frac{3}{8}$

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