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 … 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