CODOMINANCE: Mystery Bull Objectives
1. List the genotypes of the bull and cow in the given problem
2. Diagram and complete a Punnet square
3. Give phenotypic percentages of the offspring 1. Read the given problem Procedure
1. Read the given problem: Mang Marcelino owns purebred red cows. In his farm he noticed that after a typhoon several months ago, all of the fences that separate his cattle from his neighbor's cattle were destroyed During the time that the fences were down, three bulls, one from each neighbour, mingled with his cows. For a while, he thought that none of the bulls found his cows, but over the months, he noticed that all of his cows are pregnant. He suspected that one of the bulls is the father. Which bull Is it? Help Mang Marcelino look for the father by solving the given problem Determine the possible traits of the calves if and illustrate your answers using a Punnett square (2245)
A. a red (RR) bullis mated with a red (RR) cow 1
B. a red(RR) bullis mated with a white (WW) Cow 2
C. a roan(RW) is mated with a red(RR)COW 3
1. Will you be able to trace the father of the calves? (1pt)
2. What are the possible phenotypes of the calves for each cow?
3. Do you think you will make Mang Marcelino happy about the result of your investigation? How are you going to explain it to him?
4. How would you apply what you have learned to improve the breeds of livestock in your area? 5. What possible suggestions can you give to animal breeders in your area?