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Problem: Based on the pedigree shown below, what is the genotype of IV-3?A. AAB. aaC. AaD. AA or AaE. Aa or aaF. AA or aaG. AA or Aa or aa

FREE Expert Solution

Following the principles of pedigree analysis, we can determine that the 3rd individual from the 4th generation (IV-3) is an unaffected female. Looking at the 2nd and 3rd generation, it can be seen that the mode of inheritance is autosomal recessive. 

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Problem Details

Based on the pedigree shown below, what is the genotype of IV-3?

A. AA

B. aa

C. Aa

D. AA or Aa

E. Aa or aa

F. AA or aa

G. AA or Aa or aa

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