Answer:
bb=blue eyes
Explanation:
Bb or BB are brown eyes so that means that if someone has at least one brown gene they will have brown eyes. People with a dominant and a recessive gene can pass blue eyes onto their children if their partner has the recessive gene as well, but their children can also have brown eyes following the same logic.
bb is the only way to have blue eyes since it is a recessive gene.
The best way to describe it is that essentially, recessive genes "hide" when a dominant gene is present but they can still be passed down to offspring. If a dominant gene is present, they will show up.
