Type 1 albinism in humans is a rare hereditary condition associated with a reduced amount of active tyrosinase, an enzyme required for the conversion of the amino acid tyrosine to the dark pigment melanin. In the pedigree above, males are indicated by squares, females by circles and individuals with type 1 albinism are indicated by shading. Use A and a for the dominant (sufficient active tyrosinase) and recessive alleles (absent or insufficient tyrosinase activity), respectively. Remember that, when genotype is not known for a dominant phenotype, an m-dash is used (A- = AA or Aa). Match the genotypes of the indicated family members as specifically as possible based on the pedigree data. Except where necessary to explain the pedigree, assume that the individuals marrying into the family are homozygous wild-type. v Individual A - v Individual B 1. A- v Individual C 2. Aa Individual C v Individual E

Human Biology (MindTap Course List)
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Chapter20: Chromosomes And Human Genetics
Section: Chapter Questions
Problem 7CT: The following pedigree shows the pattern of inheritance of red-green color blindness in a family....
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Type 1 albinism in humans is a rare hereditary condition associated with a reduced amount of active tyrosinase, an enzyme required for the conversion of the amino acid tyrosine to
the dark pigment melanin. In the pedigree above, males are indicated by squares, females by circles and individuals with type 1 albinism are indicated by shading.
Use A and a for the dominant (sufficient active tyrosinase) and recessive alleles (absent or insufficient tyrosinase activity), respectively. Remember that, when genotype is not known
for a dominant phenotype, an m-dash is used (A- = AA or Aa).
Match the genotypes of the indicated family members as specifically as possible based on the pedigree data. Except where necessary to explain the pedigree, assume that the
individuals marrying into the family are homozygous wild-type.
v Individual A
- v Individual B
1. A-
v Individual C
2. Aa
Individual C
v Individual E
Transcribed Image Text:Type 1 albinism in humans is a rare hereditary condition associated with a reduced amount of active tyrosinase, an enzyme required for the conversion of the amino acid tyrosine to the dark pigment melanin. In the pedigree above, males are indicated by squares, females by circles and individuals with type 1 albinism are indicated by shading. Use A and a for the dominant (sufficient active tyrosinase) and recessive alleles (absent or insufficient tyrosinase activity), respectively. Remember that, when genotype is not known for a dominant phenotype, an m-dash is used (A- = AA or Aa). Match the genotypes of the indicated family members as specifically as possible based on the pedigree data. Except where necessary to explain the pedigree, assume that the individuals marrying into the family are homozygous wild-type. v Individual A - v Individual B 1. A- v Individual C 2. Aa Individual C v Individual E
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