Question

According to the Punnett square, what is the probability of a child having a phenotype of brown eyes AND a genotype of Bb?

a) Bb
b) BB
c) BbBb
d) bb

Answer 1

The probability of a child having a phenotype of brown eyes AND a genotype of Bb is 50%.

Step-by-step explanation:

According to the Punnett square, the probability of a child having a phenotype of brown eyes AND a genotype of Bb is 50%.

In a Punnett square, the vertical column represents the alleles from one parent, and the horizontal row represents the alleles from the other parent.

Since the genotype is Bb, the child inherited one allele for brown eyes (B) and one allele for another eye color (b). The probability of getting the B allele and the b allele is 50%, so the child has a 50% chance of having a phenotype of brown eyes and a genotype of Bb.