Activity 1 391y2t

Activity _ :Phenotypes and Genotypes in Incomplete Dominance Objectives:  

Explain incomplete dominance pattern of inheritance

Illustrate by means of Punnett square a cross involving incomplete dominance pattern of inheritance.

Materials: Activity sheets Manila paper Marking pen Procedure: 1.Read the given problem: In four o’clockplants, R is the allele for redcolor and W is allele for white color. Two pink flowered four o’clock plants were crossed. Show the possible outcome of the cross between two pink flowered four o’clock plants by using the Punnett square.

. 2. Now, another cross was made involving a red flowered four o’clock plant and a pink flowered four o’clock plant. 3. using the Punnett square again, show the possible outcome. 4. Show your Punnett square for problems 1 and 2 using a Manila paper. 5. Present and discuss your answers Guide Questions: Q1. 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?In problem no. 2 Q4. What are the possible genotypes of the offspring from the cross of the parental plants in problem no. 1? In problem no. 2?