Amanda Sefton (Daytripper) has normal fingers and toes and normal color vision. Her mother is normal in all respects, but her father is color blind (X- linked recessive) and syndactylous (autosomal dominant). Kurt Wagner (Nightcrawler) is color blind and syndactylous. His mother has normal color vision and normal fingers and toes, but he didn't know his father. As their genetic counselor, answer the following questions based on Kurt and Amanda marrying and starting a family. What is the probability of having a syndactylous boy that is color blind? (Enter your answer as a decimal; Example = 0.8782)

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Amanda Sefton (Daytripper) has normal fingers and toes and normal color vision. Her mother is normal in all respects, but her father is color blind (X-
linked recessive) and syndactylous (autosomal dominant). Kurt Wagner (Nightcrawler) is color blind and syndactylous. His mother has normal color
vision and normal fingers and toes, but he didn't know his father. As their genetic counselor, answer the following questions based on Kurt and
Amanda marrying and starting a family. What is the probability of having a syndactylous boy that is color blind? (Enter your answer as a decimal;
Example = 0.8782)
Transcribed Image Text:Amanda Sefton (Daytripper) has normal fingers and toes and normal color vision. Her mother is normal in all respects, but her father is color blind (X- linked recessive) and syndactylous (autosomal dominant). Kurt Wagner (Nightcrawler) is color blind and syndactylous. His mother has normal color vision and normal fingers and toes, but he didn't know his father. As their genetic counselor, answer the following questions based on Kurt and Amanda marrying and starting a family. What is the probability of having a syndactylous boy that is color blind? (Enter your answer as a decimal; Example = 0.8782)
Expert Solution
Step 1

As father of Amanda is colour blind, so Amanda may be a carrier of the disease, so her genotype for this x-linked disease must be XcX, it's given that she has normal finger and toes so, she is not affected by syndactylous, so her genotype for this can be expressed as AA.

Kurt is colour blind as well as syndactylous so his genotype for colour blind should be XcY and for syndactylous AsA (he must be a hemizygous for the disease as her mother is normal).

Using this information we can find out the probability of the baby boy of Amanda and Kurt to be a colour blind as well as syndactylous.

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