Question

Two Brown eyed parents (Bb) have a baby. What is the chance that their baby will have blue eyes? (B - Brown; b - blue) Question 12 options: 0% 50% 75% 25% correct please 30 points and brainliest

Answer 1

I'm pretty sure it's 75%. We learned this is science yesterday

Answer 2

The chance that two brown eyed parents (Bb) will have a blue eyed baby is 25%.

This is possible because of the follwing cross :

Bb X Bb ----> BB Bb Bb bb

Since brown eye is a dominant trait, the offsprings with the genotype BB and Bb will have brown eyes.

Therefore, the recessive blue eyed character will only be present in the offspring with genotype bb.

Now to calculate the percentage, the formula used is:

(No. of offspring with blue eyes/ total no. of offspring ) X 100

= 1/4 X 100

= 25%