The pedigree below is of a rare single gene disease. Given the pedigree shown below, what is the most likely pattern of inheritance for this disease? Explain your answer. Note that closed symbols are for individuals affected by the disease and open symbols are unaffected individuals (limit 3-4 sentences).
The pedigree below is of a rare single gene disease. Given the pedigree shown below, what is the most likely pattern of inheritance for this disease? Explain your answer. Note that closed symbols are for individuals affected by the disease and open symbols are unaffected individuals (limit 3-4 sentences).
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
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The pedigree below is of a rare single gene disease. Given the pedigree shown below, what is the most likely pattern of inheritance for this disease? Explain your answer. Note that closed symbols are for individuals affected by the disease and open symbols are unaffected individuals (limit 3-4 sentences).

Transcribed Image Text:**Pedigree Chart Explanation**
This pedigree chart is a graphical representation of family relationships and the inheritance of certain traits, typically genetic disorders. It uses standardized symbols to describe and track the distribution of a genetic trait within a family.
**Symbols Used:**
- **Circle:** Represents a female.
- **Square:** Represents a male.
- **Filled Symbol:** Indicates an individual who expresses the trait being studied.
- **Unfilled Symbol:** Indicates an individual who does not express the trait being studied.
- **Horizontal Line:** Connects parents.
- **Vertical Line:** Connects parents to offspring.
- **Siblings:** Represented from left to right in birth order.
**Detailed Description:**
- The chart begins with the first generation at the top, where a square (male) is connected to a circle (female). The female is shaded, indicating she expresses the trait.
- They have four offspring in the second generation, consisting of one male (square, shaded), one female (circle, unshaded), and two males (squares, unshaded).
- Moving to the third generation:
- The first male in the second generation (shaded) has three children: one female (circle, unshaded), and two males (squares, unshaded).
- The second male in the second generation (unshaded) has three children: one male (square, shaded) and two males (squares, unshaded).
- The third female (unshaded) has four children: one female (circle, shaded), two males (squares, shaded), and one male (square, unshaded).
- The fourth male (unshaded) has three children: two males (squares, shaded) and one female (circle, unshaded).
Pedigree charts are vital tools in genetics for identifying patterns of inheritance, such as autosomal dominant, autosomal recessive, X-linked dominant, and X-linked recessive traits. They are used by geneticists, doctors, and counselors to predict the probability of offspring inheriting certain traits or genetic conditions.
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