It's possible for an offspring to exhibit a recessive trait even if neither parent exhibits that recessive trait. what must be true about the parents genese for this to occur?

I'm thinking that someone higher up the family tree has to have had the recessive trait, which makes it possible for anyone after them to have it. That or the parents can still be carrying it, because recessive traits aren't always displayed even if they're carried.

videntify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.