This pedigree illustrates a heritable disease named genetici

This pedigree illustrates a heritable disease named geneticitis.

1. Which mode of inheritance does the pedigree illustrate?

2. What are the genotypes of all of the numbered family members according to your chosen mode of inheritance?

Solution

The mode of inheritance pattern is X Linked recessieve inheritance.

The genotypes is

X - Normal X chromosome
x - Defective X chromosome

1 - XY
2 - xY
3 - Xx
4 - Xx