More Punnet Square Practice

More Punnett Square Practice Name ______

Problem #1 – In seals Long whiskers (W) are dominant over short whiskers (w). Cross a heterozygous female with a homozygous recessive male. Use a Punnet square and show the phenotypic and genotypic ratios of the offspring. Cross ______X ______

Genotype Ratio % Phenotype Ratio %

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______(Remember to add together your Homozygous Dominant with your heterozygous because the will have the same Phenotype.)

Problem #2 - In pea plants, yellow peas are dominant over green peas. Use a Punnett square to predict the phenotypic and genotypic outcome (offspring) of a cross between a plant heterozygous/hybrid for yellow (Yy) peas and a plant homozygous/purebred for green (yy) peas.

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Problem #3 - In pea plants, yellow peas are dominant over green peas. Use a Punnett square to predict the phenotypic and genotypic outcome (offspring) of a cross between two plants heterozygous for yellow peas.

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______(Remember to add together your Homozygous Dominant with your heterozygous because the will have the same Phenotype.) Problem #4 - In pea plants, round peas are dominant over wrinkled peas. Use a Punnett square to predict the phenotypic and genotypic outcome (offspring) of a cross between a plant

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______(Remember to add together your Homozygous Dominant with your heterozygous because the will have the same Phenotype.) homozygous for round peas (RR) and a plant homozygous for wrinkled peas (rr). Problem #5 - In pea plants, round peas are dominant over wrinkled peas. Use a Punnett square to predict the phenotypic and genotypic outcome (offspring) of a cross between two plants heterozygous for round peas.

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