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 pattern of
Transcribed Image Text:### Pedigree Chart Explanation
#### Introduction
This pedigree chart is used to trace the inheritance of a certain trait through multiple generations. Each symbol represents an individual, and their relationships are indicated by lines connecting them.
#### Symbols
- **Squares** denote males.
- **Circles** denote females.
- **Filled symbols** (black) indicate individuals who express the trait in question.
- **Empty symbols** (white) indicate individuals who do not express the trait.
- **Partially filled symbols** (shaded) may represent carriers of a trait in cases of recessive inheritance patterns.
#### Analysis
##### Generation I
- There are two individuals:
- Individual 1 (male): Expresses the trait.
- Individual 2 (female): Does not express the trait.
##### Generation II
- There are five individuals:
- 1 and 2 are offspring of I-1 and I-2.
- Individual II-1 (male): Does not express the trait.
- Individual II-2 (female): Does not express the trait.
- 3 and 4 are offspring of II-1 and II-2.
- Individual II-3 (male): Expresses the trait.
- Individual II-4 (female): Does not express the trait.
- Individual II-5 (male): Expresses the trait.
##### Generation III
- There are eight individuals:
- 1 to 3 are potential offspring of II-1 and II-2.
- Individual III-1 (male): Does not express the trait.
- Individual III-2 (female): Does not express the trait.
- Individual III-3 (female): Expresses the trait.
- 4 is the offspring of III-3 and III-6.
- Individual IV-1 (female): Does not express the trait.
- Individual IV-2 (male): Does not express the trait.
- Individual IV-3 (female): Expresses the trait.
- Individual IV-4 (female): Does not express the trait.
- 5 and 6 are offspring of II-5 and II-4.
- Individual III-5 (male): Expresses the trait.
- Individual III-6 (female): Does not express the trait.
- 7 and 8 are offspring of II-4 and II-5.
- Individual III-
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