How can you tell if you carry the recessive gene for blue eyes?

Question

My grandma had blue eyes and was bb ( im going by the punit square thing sorry if i misspelled it ) and my grandpa was brown eyed BB, they had my mother who is Bb and has brown eyes who had me with my father who also has brown eyes BB i figured I had a 50% chance to have the recessive gene for blue eyes ( i have brown eyes) and Bb rather than just BB. Is their any way i can be sure unless I have children with a blue eyed woman?

Answer 1

You have 50% chance being Bb. The only way you can be sure you are Bb is to have a blue eye kid with a blue eye woman.

Answer 2

use a punnet square

Answer 3

Draw a punnet square.

:)

Answer 4

You could get genetically tested. I'm not 100% sure that they actually know exactly what to look for, but theoretically this should work. You could also have several children with a Bb woman and see if 1/4 of them have blue eyes (or any would be just as good because of the presumably small sample size).