What are Punnett Squares?Punnett squares are diagrams that are used to predict an outcome of a particular cross or breeding experiment. It is named after Reginald C.Punnett, who devised the approach. The diagram is used by biologists to determine the probability of an offspring having a particular genotype. |
How do you use one?
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Using a punnett square is actually very easy, it just takes a little bit of practice. First off, place the father's alleles on the top of the punnett square with one letter above each box. Then, place the mother's alleles on the left hand side of the square, with one letter in front of each box. You have to be careful, you have to use capital letters for the dominate genes and lower case letters for the recessive alleles