Procedure: 1. Read the given problem: In four o'clock plants, R is the allele for red color and W is allele for white color. Two pink four o'clock flower plants were crossed. Show the possible outcome of the cross between two pink four o'clock flower plants by using the Punnett square. 2. Now, another cross was made involving a red four o'clock flower plant and a pink four o'clock flower plant. Using the Punnett square again, show the possible outcome. Show your Punnett square for problems 1 and 2 by writing it on a manila paper. 5. Present and discuss your answers. 3. 4. Guide Questions: Q 1. How many types of gametes will each parent produce in problem no. 1? In problem no. 2? Q2. What is the phenotype of a heterozygous four o'clock flower? Q3. What are the possible phenotypes of the offspring from the cross of the parental plants in problem no. 1? What about in problem no. 2?