For example, how many siblings are in a family? Or the relative ages of siblings?

例如，一个家庭有多少兄弟姐妹？或兄弟姐妹的相对年龄是多少？

" I think it's very cool they looked at the DNA methylation patterns and they compared them to match up the relative ages, " says Pellegrini.

“我认为他们研究了 DNA 甲基化模式并将它们进行比较以匹配相对年龄， 这非常酷，” 佩莱格里尼说。