● O это 1825338 J. What is the most likely mode of inheritance portrayed in the pedigree above?

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**Pedigree Analysis: Mode of Inheritance**

This diagram is a pedigree chart, which visually represents the inheritance patterns of traits or genetic conditions within a family across several generations. The diagram includes symbols to denote individuals and their relationships:

- **Circles** represent females.
- **Squares** represent males.
- **Filled shapes** indicate individuals who express a specific trait or genetic condition.
- **Empty shapes** indicate individuals who do not express the trait.

### Analysis of the Pedigree

The chart portrays several generations, with specific individuals exhibiting a genetic trait (filled symbols). Here's how to interpret the chart:

1. **Generation Representation**: 
   - Each row represents a different generation.
   - Vertical lines connect parents to their children.
2. **Trait Expression**:
   - Observations can show how the trait is passed on and expressed in descendants.

### Understanding Mode of Inheritance

To determine the mode of inheritance, you might consider:

- **Autosomal Dominant**: Trait appears in every generation, both males and females affected equally, with at least one affected parent.
- **Autosomal Recessive**: May skip generations, both sexes affected equally, often appears in siblings rather than parents.
- **X-linked Dominant**: More females affected, no male-to-male transmission, all daughters of an affected male are affected.
- **X-linked Recessive**: More males affected, no male-to-male transmission, often inherited from carrier mothers.

**Question**:
- What is the most likely mode of inheritance portrayed in the pedigree above?

This question asks you to analyze the pattern of inheritance displayed in the pedigree to determine which mode is most likely. Consider traits such as recurrence in every generation, sex distribution, and whether it skips generations to draw your conclusion.
Transcribed Image Text:**Pedigree Analysis: Mode of Inheritance** This diagram is a pedigree chart, which visually represents the inheritance patterns of traits or genetic conditions within a family across several generations. The diagram includes symbols to denote individuals and their relationships: - **Circles** represent females. - **Squares** represent males. - **Filled shapes** indicate individuals who express a specific trait or genetic condition. - **Empty shapes** indicate individuals who do not express the trait. ### Analysis of the Pedigree The chart portrays several generations, with specific individuals exhibiting a genetic trait (filled symbols). Here's how to interpret the chart: 1. **Generation Representation**: - Each row represents a different generation. - Vertical lines connect parents to their children. 2. **Trait Expression**: - Observations can show how the trait is passed on and expressed in descendants. ### Understanding Mode of Inheritance To determine the mode of inheritance, you might consider: - **Autosomal Dominant**: Trait appears in every generation, both males and females affected equally, with at least one affected parent. - **Autosomal Recessive**: May skip generations, both sexes affected equally, often appears in siblings rather than parents. - **X-linked Dominant**: More females affected, no male-to-male transmission, all daughters of an affected male are affected. - **X-linked Recessive**: More males affected, no male-to-male transmission, often inherited from carrier mothers. **Question**: - What is the most likely mode of inheritance portrayed in the pedigree above? This question asks you to analyze the pattern of inheritance displayed in the pedigree to determine which mode is most likely. Consider traits such as recurrence in every generation, sex distribution, and whether it skips generations to draw your conclusion.
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