How do you know which one number is for S/Tu or U/Tu I know both equals 36.6

Emily and Jack were so excited at the birth of their baby Mark.“Jack, he’s just so perfect! Just one problem though, it looks like he has your hairline!” Emily teased her husband who, though only 32, was balding.“Emily, I spent all that time painting the baby’s room and I just hope that he’s not color blind like your father or he won’t be able to see it!” Jack responded.Both the pregnancy and delivery had been uneventful. But in the back of their minds, they really were worriedbecause their first child, Sean, died at the age of nine days.By the fifth day after birth, Mark began to have trouble nursing and by the seventh day he had completely stopped feeding. Emily and Jack were frantic because it seemed to them that Mark might also die.“What is going on with our family? Another sick baby?” Jack thought to himself.Emily and Jack rushed him to the emergency room. Although Mark's limbs were rigid and he had had a seizure, the examination showed no infection and his x-rays were normal. The…

Mr. Chan's family consists of mom, dad and four kids. The parents have one daughter and one son together, another daughter is from the mother's previous marriage, and the other son is adopted. Here are the DNA analysis results: Mom Dad Child 1 = Child 2 Child 3 Child 4 I 1. Which child is adopted? Why? 2. Which child is from the mother's previous marriage? Why? 3. Who are the own children of Mr and Mrs Chan?

Identify the labeled structures 1-5