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Color blind inheritance example 2

The possible children of a non-color blind father and a mother who is a gene carrier are shown below.

Pedigree tree showing possible children of a non-colourblind father and a mother who is a gene carrier for colourblindness. The father has a normal X chromosome and a Y chromosome. The mother has one normal X chromosome and one X chromosome with the colourblind gene. One so inherits a normal X chromosome and a Y chromosome. The other son inherits an X-chromosome containing the colourblind gene and a Y chromosome. There is a 50% probability that a son will be colourblind. Oe daughter inherits two normal X chromosomes and the other daughter inherits one normal X chromosome and one X chromosome with the colourblind gene. There is a 50% probability that a daughter will be a gene carrier for colourblindness.

Referred from:

Article
Color Blindness