Inheritance and genetic crosses

Red-green color blindness is a sex-linked recessive genetic disorder. The gene responsible is located on the X chromosome.

The letter B represents the dominant allele for normal color vision, and the allele b represents the recessive mutated allele.

A pedigree chart showing three generations of a family tracking red-green color blindness.

What is the percentage chance of any child of Person 1 inheriting the mutated allele ( $b$ ) from her?

25%

50%

75%

Inheritance and genetic crosses Questions

Red-green color blindness is a sex-linked recessive genetic disorder. The gene responsible is located on the X chromosome.

The letter B represents the dominant allele for normal color vision, and the allele b represents the recessive mutated allele.

A pedigree chart showing three generations of a family tracking red-green color blindness.

What is the percentage chance of any child of Person 1 inheriting the mutated allele ( $b$ ) from her?

25%

50%

75%