Below is a pedigree of a family with a history of the autosomal recessive disorder Tay Sachs Use T to represent the dominant

Question

Below is a pedigree of a family with a history of the autosomal recessive disorder Tay Sachs Use T to represent the dominant allele and t to represent the recessive allele of the gene that when mutant causes Tay Sachs Part 1 Indicate the genotype for each individual in the first two generations of the pedigree 1 1 TT Tt 2 3 1 4 O 1 6 1 2 1 2 tt 11 2 37773 X linked recessive Autosomal dominant Part 2 What is the probability that the unborn child in the third generation marked with a question mark will have Tay Sachs disease 1 3 ZZZZA A7700 TT tt Tt TT or Tt V 11 3 V 1 4 Part 3 Imagine you do not know the mode of inheritance of this disease Are the first two generations of this pedigree consistent with each of the following modes of inheritance 11 4

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