蛙の子は蛙 (かえるのこはかえる): like father, like son; the apple doesn't fall far from the tree; the child of a frog is a frog

like father, like son; the apple doesn't fall far from the tree; the child of a frog is a frog

Usually affectionate, about a child turning out like a parent. It can also be self deprecating: ordinary parents, ordinary child.

A Japanese proverb (ことわざ)