5. A female child, Della, has the autosomal dominant condition of polydactyly. Della's mother has the normal number of fingers and toes like her parents and brother (Della's maternal grandparents and uncle). Della's father has six fingers on each hand and so did two of his three sisters and his mother (Della's paternal aunt and grandmother). Della has a younger brother who has the normal number of fingers and toes. Give the genotype of each parent and each child. Della's Mother Della's Father Della Della's Brother 5. Draw a pedigree demonstrating polydactyly in the family above. 7
5. A female child, Della, has the autosomal dominant condition of polydactyly. Della's mother has the normal number of fingers and toes like her parents and brother (Della's maternal grandparents and uncle). Della's father has six fingers on each hand and so did two of his three sisters and his mother (Della's paternal aunt and grandmother). Della has a younger brother who has the normal number of fingers and toes. Give the genotype of each parent and each child. Della's Mother Della's Father Della Della's Brother 5. Draw a pedigree demonstrating polydactyly in the family above. 7
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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**5. Genetic Traits: Understanding Polydactyly**
A female child, Della, has the autosomal dominant condition of polydactyly. Della’s mother has the normal number of fingers and toes like her parents and brother (Della’s maternal grandparents and uncle). Della’s father has six fingers on each hand and so did two of his three sisters and his mother (Della’s paternal aunt and grandmother). Della has a younger brother who has the normal number of fingers and toes.
**Task:**
Determine the genotype of each parent and each child.
- **Della’s Mother:** ______________
- **Della:** ______________
- **Della’s Father:** ______________
- **Della’s Brother:** ______________
**6. Pedigree Creation**
Draw a pedigree demonstrating polydactyly in the family described above.
---
**Instructions for Graph/Diagram Explanation:**
- **Create a Pedigree Chart:**
- To represent the inheritance of polydactyly, draw a family tree.
- Use shapes: squares for males, circles for females.
- Shade symbols representing individuals with polydactyly.
- **Generations:**
- Indicate three generations:
1. Della’s paternal grandmother who has polydactyly.
2. Della’s father and his sisters (two of whom have polydactyly).
3. Della, who has polydactyly, and her brother, who does not.
- **Connect Family Members:**
- Use lines to connect parents to their children.
- Show relations clearly by grouping siblings horizontally.
This exercise helps in understanding how genetic traits like polydactyly are passed down through generations using a pedigree.
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