How do you do a Punnett Square? By Mrs. Rothenberger Look for this picture in your lab book. This power point goes with this picture.

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Presentation transcript:

How do you do a Punnett Square? By Mrs. Rothenberger Look for this picture in your lab book. This power point goes with this picture.

How do I cross a woman with a widow’s peak whose genotype is (Ww) with a man who has a straight hairline (ww)? Step 2: Place the male’s alleles on the side of the Punnett Square. W w Step 1: Place the female’s alleles on the top of the Punnett Square. w w Ww

How do I cross a woman with a widow’s peak whose genotype is (Ww) with a man who has a straight hairline (ww)? W w Step 3: In each box, write the letter that is above it and the letter that is next to it. w w Ww w w wW W W w w ww ww w w