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When many families were tested for their ability to taste the chemical PTC, the parental pairs were grouped into three types and the progeny totaled. The results were as follows:

When many families were tested for their ability to taste the chemical PTC, the parental pairs were grouped into three types and the progeny totaled. The results were as follows:

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
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When many families were tested for their ability to taste the chemical PTC, the parental pairs were grouped into three types and the progeny totaled. The results were as follows:

 

Assuming that PTC tasting is dominant (P) and nontaster is recessive (p), how can the progeny ratios in each of the three types of matings be accounted for?

### Genetic Tasting Patterns in Families This table presents data on genetic tasting abilities among families, classified by parental combinations and the resulting children's traits. **Parental Combinations:** - **Taster x Taster**: 425 families - **Children:** - Tasters: 929 - Nontasters: 130 - **Taster x Nontaster**: 289 families - **Children:** - Tasters: 483 - Nontasters: 278 - **Nontaster x Nontaster**: 86 families - **Children:** - Tasters: 5 - Nontasters: 218 This data illustrates the genetic inheritance patterns of tasting ability, showing how different parental combinations can influence the likelihood of children being tasters or nontasters.
Transcribed Image Text:### Genetic Tasting Patterns in Families This table presents data on genetic tasting abilities among families, classified by parental combinations and the resulting children's traits. **Parental Combinations:** - **Taster x Taster**: 425 families - **Children:** - Tasters: 929 - Nontasters: 130 - **Taster x Nontaster**: 289 families - **Children:** - Tasters: 483 - Nontasters: 278 - **Nontaster x Nontaster**: 86 families - **Children:** - Tasters: 5 - Nontasters: 218 This data illustrates the genetic inheritance patterns of tasting ability, showing how different parental combinations can influence the likelihood of children being tasters or nontasters.
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