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New article next to Color blindness inheritance example 3 新文章下面色盲遗传考试ple 3

The pedigree tree shows the possible children of a color blind father and gene carrier mother.

Pedigree tree showing the possible children of a colourblind father and a gene carrier mother. The father has an X chromosome with the colourblind gene and a y chromosome. The mother has an X chromosome with the colourblind gene and a normal X chromosome. One son inherits a normal X chromosome and a Y chromosome. The other son inherits a colourblind X chromosome and a Y chromosome- there is a 50% probability that a son is colourblind. One daughter inherits two colourblind X chromosomes and the other daughter inherits a colourblind X chromosome and a normal X chromosome. There is a 100% probability that a daughter will carry the colourblind gene and a 50% chance that a daughter will be colourblind.

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