What is the MOST likely mode of inheritance of the trait sho

What is the MOST likely mode of inheritance of the trait shown in the pedigree below, assuming that the trait is rare and fully penetrant? Autosomal recessive X-linked recess X-linked dominant Y-linked Consider the pedigree shown in Figure 6.3. lf individual [V-7 married a person who was unaffected with Waardenburg syndrome, what is the probability that their first child would have Waardenburg syndrome? 1.0 3/4 1/2 1/4 0

Solution

1. Autosomal recessive :

Because both male and female affected (autosomal) and there is a skipping generation (recessive).

2. Answer: 1/2 :

Here waarberg syndrome is a autosomal dominant syndrome. One affected individual is sufficient to give 50% of their children will get affected.