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Mendelian Genetics Worksheet, Exercises of Genetics

8-1 Mendelian Genetics Intro IP. Name. Hour. Fill in the Punnett squares for each cross given to determine the phenotype and genotype percentages of the ...

Typology: Exercises

2021/2022

Uploaded on 09/12/2022

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8-1 Mendelian Genetics Intro IP Name Hour
Fill in the Punnett squares for each cross given to determine the phenotype and genotype percentages of the offspring
Crosses with one homozygous dominant parent:
AA x AA AA x Aa AA x aa
Offspring Genotypes:
AA % Aa % aa % AA % Aa % aa % AA % Aa % aa %
Offspring Phenotypes:
Dominant % Dominant % Dominant %
Recessive % Recessive % Recessive %
Crosses with one heterozygous parent:
Aa x AA Aa x Aa Aa x aa
Offspring Genotypes:
AA % Aa % aa % AA % Aa % aa % AA % Aa % aa %
Offspring Phenotypes:
Dominant % Dominant % Dominant %
Recessive % Recessive % Recessive %
Crosses with one homozygous recessive parent:
aa x AA aa x Aa aa x aa
Offspring Genotypes:
AA % Aa % aa % AA % Aa % aa % AA % Aa % aa %
Offspring Phenotypes:
Dominant % Dominant % Dominant %
Recessive % Recessive % Recessive %
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8 - 1 Mendelian Genetics Intro IP Name Hour Fill in the Punnett squares for each cross given to determine the phenotype and genotype percentages of the offspring Crosses with one homozygous dominant parent: AA x AA AA x Aa AA x aa Offspring Genotypes: AA % Aa % aa % AA % Aa % aa % AA % Aa % aa % Offspring Phenotypes: Dominant % Dominant % Dominant % Recessive % Recessive % Recessive % Crosses with one heterozygous parent: Aa x AA Aa x Aa Aa x aa Offspring Genotypes: AA % Aa % aa % AA % Aa % aa % AA % Aa % aa % Offspring Phenotypes: Dominant % Dominant % Dominant % Recessive % Recessive % Recessive % Crosses with one homozygous recessive parent: aa x AA aa x Aa aa x aa Offspring Genotypes: AA % Aa % aa % AA % Aa % aa % AA % Aa % aa % Offspring Phenotypes: Dominant % Dominant % Dominant % Recessive % Recessive % Recessive %

Refer to the crosses that you worked out on the front of this page to answer questions 1- 8

  1. What crosses will result in all dominant phenotype offspring?
  2. What cross will result in all recessive phenotype offspring?
  3. What cross will result in half dominant and half recessive phenotype offspring?
  4. What cross will result in all homozygous recessive offspring?
  5. What cross will result in all heterozygous offspring?
  6. In dogs, black fur (B) is dominant over yellow fur (b). A homozygous black dog is mated with a yellow dog. Do a punnett square to show the cross and predict the offspring (phenotypes and genotypes)
  7. In dogs, black fur (B) is dominant over yellow fur (b). A heterozygous black dog is mated with a yellow dog. Do a punnett square to show the cross and predict the offspring (phenotypes and genotypes)