Presentation on theme: "and How to use a Punnett Square to predict probable offspring"— Presentation transcript:
1and How to use a Punnett Square to predict probable offspring Medelian GeneticsandHow to use a Punnett Squareto predict probable offspring
2Simple Steps to follow1. Determine the parental phenotype and genotypes of the traits being crossed.2. Determine the possible gametes from the parents in #1.3. Use the gametes to fill the outside of a blank Punnett Square.4. Complete the inside of the Punnett Square.
3More Steps…5. Count the number of possible genotypes found in the Punnett Square.6. Determine the percentage of genotypes found.7. Determine the phenotypes (based on the genotypes) and percentages from the Punnett Square.8. Celebrate – you’re done!