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What cross will result in a ratio of 3 dominant phenotype offspring for every 1 recessive offspring?    What cross will result in a 1:2:1 genotype ratio in the offspring?    What cross will result in all homozygous recessive offspring?

What cross will result in a ratio of 3 dominant phenotype offspring for every 1 recessive offspring?    What cross will result in a 1:2:1 genotype ratio in the offspring?    What cross will result in all homozygous recessive offspring?

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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What cross will result in a ratio of 3 dominant phenotype offspring for every 1 recessive offspring? 

 

What cross will result in a 1:2:1 genotype ratio in the offspring? 

 

What cross will result in all homozygous recessive offspring? 

**Punnett Square Worksheet** Name: _______________________________ Hour: ___________ **Fill in the Punnett squares for each cross given to determine the phenotype and genotype ratio's of the offspring** --- **Crosses with one homozygous dominant parent:** 1. **AA x AA** - Punnett Square: | A | A | |---|---| | A | | | A | | - **Offspring Genotypes:** - AA _____ - **Offspring Phenotypes:** - Dominant ___________ - Recessive ___________ 2. **AA x Aa** - Punnett Square: | A | A | |---|---| | A | | | a | | - **Offspring Genotypes:** - AA ____ - Aa ____ - **Offspring Phenotypes:** - Dominant ___________ - Recessive ___________ 3. **AA x aa** - Punnett Square: | A | A | |---|---| | a | | | a | | - **Offspring Genotypes:** - AA ____ - Aa ____ - aa ____ - **Offspring Phenotypes:** - Dominant ___________ - Recessive ___________ --- **Crosses with one heterozygous parent:** 4. **Aa x AA** - Punnett Square: | A | A | |---|---| | A | | | a | | - **Offspring Genotypes:** - AA ____ - Aa ____ - **Offspring Phenotypes:** - Dominant ___________ - Recessive ___________ 5. **Aa x Aa** - Punnett Square: | A | a | |---|---| | A | | | a | | - **Offspring Genotypes:** - AA ____ - Aa ____ - aa ____ - **Offspring Phenotypes:** - Dominant ___________ - Recessive ___________ 6. **Aa x aa** - Punnett Square: | A | a | |---|---| | a |
Transcribed Image Text:**Punnett Square Worksheet** Name: _______________________________ Hour: ___________ **Fill in the Punnett squares for each cross given to determine the phenotype and genotype ratio's of the offspring** --- **Crosses with one homozygous dominant parent:** 1. **AA x AA** - Punnett Square: | A | A | |---|---| | A | | | A | | - **Offspring Genotypes:** - AA _____ - **Offspring Phenotypes:** - Dominant ___________ - Recessive ___________ 2. **AA x Aa** - Punnett Square: | A | A | |---|---| | A | | | a | | - **Offspring Genotypes:** - AA ____ - Aa ____ - **Offspring Phenotypes:** - Dominant ___________ - Recessive ___________ 3. **AA x aa** - Punnett Square: | A | A | |---|---| | a | | | a | | - **Offspring Genotypes:** - AA ____ - Aa ____ - aa ____ - **Offspring Phenotypes:** - Dominant ___________ - Recessive ___________ --- **Crosses with one heterozygous parent:** 4. **Aa x AA** - Punnett Square: | A | A | |---|---| | A | | | a | | - **Offspring Genotypes:** - AA ____ - Aa ____ - **Offspring Phenotypes:** - Dominant ___________ - Recessive ___________ 5. **Aa x Aa** - Punnett Square: | A | a | |---|---| | A | | | a | | - **Offspring Genotypes:** - AA ____ - Aa ____ - aa ____ - **Offspring Phenotypes:** - Dominant ___________ - Recessive ___________ 6. **Aa x aa** - Punnett Square: | A | a | |---|---| | a |
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