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Punnetts Square

Punnetts Square. Vocabulary. Alleles: one from each parent, how they interact determines the physical characteristics of the person. EX: shape of the ear. Homozygous: alleles are identical Heterozygous: alleles are different Genotype: “gene”, BB, Bb, bb

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Punnetts Square

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  1. Punnetts Square

  2. Vocabulary • Alleles: one from each parent, how they interact determines the physical characteristics of the person. EX: shape of the ear. • Homozygous: alleles are identical • Heterozygous: alleles are different • Genotype: “gene”, BB, Bb, bb • Phenotype: the physical characteristic- big eyes.

  3. 1) When 2 homozygous dominant creatures mate: B = Big eyes bb = small eyes

  4. 2) When a homozygous dominant creature mates with a homozygous recessive creature B = Big eyes bb = small eyes

  5. 3) When a homozygous dominant creature mates with a heterozygous creature B = Big eyes bb = small eyes

  6. 4) When 2 homozygous recessive creatures mate: B = Big eyes bb = small eyes

  7. 5) When a homozygous recessive creature mates with a heterozygous creature B = Big eyes bb = small eyes

  8. 6) When 2 heterozygous creatures mate B = Big eyes bb = small eyes

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