WILL CHOOSE BRAINLIEST! Needs help with 2-4

Answer:
Explanation:
1. both of I-3 and I-4 are hetero because one of their children have dimples( filled in is dimples)
2. only II-9 can be hom0 because II-8 has a parent who is recessive
3. I-1 and III-12 both have dimples and are male