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Genetics: Punnett Square Practice Problems

Practice Punnett Square problems showcasing genetics of guinea pigs and flowers. Includes genotypic and phenotypic ratios for F1 generation.

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Genetics: Punnett Square Practice Problems

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  1. Write down the red problem: Punnett Square Problem #1 • Yellow (Y) is dominant to cream (y) in guinea pigs. • A heterozygous yellow guinea pig (female) is crossed with a cream guinea pig (male ). • Show the punnettsquare completed • Give the phenotypic and genotypic ratios for the F1 generation.

  2. Results #1 Y y y y Genotypic Ratio: Phenotypic Ratio:

  3. Write down the red problem: Punnett Square Problem #2 • In flowers red flower color (W) is dominant over white (w). • A hybrid red flower is crossed with a heterozygous red flower. • Show the punnett square completed • Give the phenotypic and genotypic ratios for the F1 generation.

  4. Results #2 Genotypic Ratio: Phenotypic Ratio:

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