PUNETT SQUARES. How do we know what an offspring will look like?. Chance determines which genes an offspring will inherit from its parent. What is a punnett square?. Tool used to predict the phenotype of an offspring. Parent genotype is placed above and to the side of the punnett square
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Place a letter into each box
Each box is equal to 25% that the trait will show upHow do you use a punnett square?
B – no dimples
b – dimples
B- no dimples
What will the children look like?Example 1
What are the possible genotypes of each offspring?
What is the percentage for each genotypes?Example 2
What are the possible genotypes?
What are the percentages for each genotype?Example 3