Consider a gene where A is dominant to a. Determinine the mode of inheritance, then considering individuals II-2's parents and offspring. What is the most likely genotype for individual II-2 below? Explain your answer.

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Consider a gene where A is dominant to a. Determinine the mode of inheritance, then considering individuals II-2's parents and offspring. What is the most likely genotype for individual II-2 below? Explain your answer.

 

This image depicts a hand-drawn pedigree chart, a diagram used in genetics to analyze inheritance patterns of traits across generations. Here's a detailed breakdown of the chart:

1. **Generations**: 
   - The diagram is organized into three horizontal levels, representing three generations within a family.

2. **Symbols**:
   - **Squares** represent males.
   - **Circles** represent females.
   - **Shaded symbols** indicate individuals expressing a particular trait, possibly a genetic disorder.

3. **Relationships**:
   - Married couples are connected by a horizontal line.
   - Vertical lines descend from married couples to their children.

4. **First Generation**:
   - Comprises a male (square) partnered with a female (circle), the female is shaded.

5. **Second Generation**:
   - This generation displays three couples. 
   - One couple at the left has three offspring. The male is unshaded, and the female is shaded.
   - The central couple consists of a shaded male and an unshaded female.
   - The rightmost couple is an unshaded male and a female.

6. **Third Generation**:
   - The leftmost branch shows three children, with varying shading. Two males and one female appear, with the pattern suggesting inheritance of the trait.
   - The right branch shows two unshaded females and one male with an unclear shading status.

The diagram emphasizes hereditary traits and genetic transmission.
Transcribed Image Text:This image depicts a hand-drawn pedigree chart, a diagram used in genetics to analyze inheritance patterns of traits across generations. Here's a detailed breakdown of the chart: 1. **Generations**: - The diagram is organized into three horizontal levels, representing three generations within a family. 2. **Symbols**: - **Squares** represent males. - **Circles** represent females. - **Shaded symbols** indicate individuals expressing a particular trait, possibly a genetic disorder. 3. **Relationships**: - Married couples are connected by a horizontal line. - Vertical lines descend from married couples to their children. 4. **First Generation**: - Comprises a male (square) partnered with a female (circle), the female is shaded. 5. **Second Generation**: - This generation displays three couples. - One couple at the left has three offspring. The male is unshaded, and the female is shaded. - The central couple consists of a shaded male and an unshaded female. - The rightmost couple is an unshaded male and a female. 6. **Third Generation**: - The leftmost branch shows three children, with varying shading. Two males and one female appear, with the pattern suggesting inheritance of the trait. - The right branch shows two unshaded females and one male with an unclear shading status. The diagram emphasizes hereditary traits and genetic transmission.
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