Here, a diagram depicts that parents of the first family are unaffected in the F1 generation, but the daughter acquires the disease in the F-2 generation. For a recessive tr… See more

Here a diagram depicts that the first unaffected couple has unaffected children in the next generation. Oppositely, a second affected couple in the F1 generation has produc… See more

As you can see in the diagram, the infected mother of the first generation has transferred the disease to her sons in the F-2 generation. We have already discussed that X-linke… See more

Here, parents of the first family have one affected male member in the F1 generation and two affected males in the F-2 generation. We discussed earlier that in the Y-linked tra… See more