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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
Transcribed Image Text:### Pedigree Analysis
The image features a pedigree chart, which is a diagram representing the familial relationships and inheritance patterns of a specific trait or genetic condition within a family.
#### Key Features:
1. **Symbols**:
- **Circles** represent females.
- **Squares** represent males.
- **Shaded symbols** indicate individuals expressing the trait.
- **Unshaded symbols** are unaffected individuals.
2. **Generations**:
- The chart is organized by generations, with parents at the top and their offspring below, connected by vertical lines.
- Horizontal lines connect parents to each other.
3. **Inheritance Pattern**:
- This pedigree shows both males and females affected in multiple generations.
#### Question
**K. What is the most likely mode of inheritance portrayed in the pedigree above?**
The pattern suggests an autosomal dominant inheritance:
- Both genders are affected.
- The condition appears in every generation, indicating a dominant trait.
- Affected individuals have a 50% chance of passing the trait to their offspring.
This analysis aids in understanding genetic inheritance and predicting the likelihood of future generations being affected by a similar trait.
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