(Solved): The pedigree below is for an autosomal recessive disorder that you assume is rare. Below is a list ...

The pedigree below is for an autosomal recessive disorder that you assume is rare. Below is a list of all individuals in generations III and IV. Which individuats in generations III and IV MUST be heterozygous carriers? Select ALL that apply. III-1 III-2 III-3 III-4 III- 5 IV -1 IV-2 IV-3 $\begin{array}{l}\text{ III-1 }\\ \text{ III-2 }\\ \text{ III-3 }\\ \text{ III-4 }\\ \text{ III-5 }\\ \text{ IV-1 }\\ \text{ IV-2 }\\ \text{ IV-3 }\\ \text{ IV-4 }\\ \text{ IV-5 }\\ \text{ IV-6 }\\ \text{ IV-7 }\\ \text{ IV-8 }\\ \text{ IV-9 }\end{array}$