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# Consider the disease cystic fibrosis, which is inherited as an autosomal recessive trait. An unaffected male and unaffected female have an affected...

2. Consider the disease cystic fibrosis, which is inherited as an autosomal recessive trait.

a. An unaffected male and unaffected female have an affected child. What is the probability (in %) that the next three children will be affected? Your answer will include two significant digits after rounding (i.e #.#). Don't include the % sign! 1.6 SO,

b. What is the probability (in %) that the next three children (after the birth of the first affected child) will be unaffected males? Your answer will include two significant digits after rounding (i.e #.#). Don't include the % sign!

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• b) The probability (in %) that the next three children (after the birth of the first affected child) will be unaffected males = 1/2*1/2*1/2 = 1/8 = 0.12 = 12%
• nupurmittal
• May 08, 2018 at 2:53am
• The probability (in %) that the next three children (after the birth of the first affected child) will be unaffected child = 3/4*3/4*3/4 = 27/64 = 0.42 = 42%
• nupurmittal
• May 08, 2018 at 2:53am

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