Eye Color Genetics: Predicting Baby's Eye Color - Probability & Genotypes

Possible Genotypes:

Grandfather 1: Bb (since he has blue eyes)

Grandfather 2: Bb (since he also has blue eyes)

Parents:

Father: Bb (since his parent have blue eyes)

Mother: Gg Bb (since she has green eyes and brown eyed parents)

Possible Offspring:

BBGG: Brown eyes

BBGg: Brown eyes

BG GG: Green eyes

BG Gg: Green eyes

BBGg: Brown eyes

BBgg: Brown eyes

BGGg: Green eyes

BG gg: Green eyes

Calculating Probability:

Probability of brown eyes = (BBGG + BBGg + BBGg + BBgg) / 8 = 2/8 = 1/4

Probability of green eyes = (BG GG + BG Gg + BGGg + BG gg) / 8 = 6/8 = 3/4

Therefore, the chances of a baby having brown eyes are 1/4, while the chances of having green eyes are 3/4.